Thesaurus.com
Dictionary.com
Definitions

imprecise

[im-pruh-sahys] / ˌɪm prəˈsaɪs /
ADJECTIVE
approximate
Synonyms
STRONGEST
estimated
STRONG
guessed loose rough surmised
WEAK
imperfect uncertain unprecise unscientific
Antonyms
STRONG
definite precise
WEAK
accurate away clear dissimilar exact far same
ADJECTIVE
faulty
Synonyms
STRONGEST
broken cracked damaged defective deficient erroneous false flawed inaccurate inadequate incomplete insufficient invalid leaky malfunctioning unreliable
WEAK
adulterated amiss awry bad below par blamable blemished botched debased distorted fallacious fallible frail impaired imperfect inexact injured lame lemon maimed malformed marred out of order rank sick tainted unfit unretentive unsound warped weak wrong
Antonyms
STRONGEST
OK accurate adequate ample complete correct enough faultless fixed flawless honest perfect reliable right sufficient true unbroken valid working
WEAK
sound strong
ADJECTIVE
general
Synonyms
STRONG
loose
WEAK
ill-defined inaccurate indefinite not partial not particular not specific uncertain undetailed unspecific vague
Antonyms
WEAK
abnormal circumscribed definite exact exceptional extraordinary individual limited novel particular rare singular specific unaccepted uncommon unique unusual
ADJECTIVE
impalpable
Synonyms
WEAK
airy delicate disembodied fine imperceptible imponderable inappreciable incorporeal indiscernible indistinct insensible insubstantial nebulous shadowy tenuous thin unapparent unobservable unperceivable vague
Antonyms
WEAK
believeable palpable perceptible substantial tangible understandable
ADJECTIVE
inaccurate
Synonyms
STRONGEST
defective false faulty incorrect mistaken unreliable untrue wrong
WEAK
all wet careless counterfactual discrepant doesn't wash fallacious in error inexact off off base out specious unfaithful unsound way-off wide wild
Antonyms
STRONGEST
accurate correct honest just perfect precise reliable right sound true
ADJECTIVE
incorrect
Synonyms
STRONGEST
erroneous false faulty flawed improper inaccurate inappropriate mistaken unreliable unsound untrue
WEAK
counterfactual inexact not trustworthy out specious unfitting unseemly unsuitable way-off wide of the mark wrong number
Antonyms
STRONGEST
accurate appropriate correct fitting honest just precise proper reliable right sound strong suitable true valid
ADJECTIVE
indefinite
Synonyms
STRONGEST
infinite undefined undetermined unlimited
WEAK
broad confused doubtful dubious equivocal evasive general ill-defined indeterminable indeterminate indistinct inexact inexhaustible innumerable intangible loose obscure shadowy uncertain unclear undependable unfixed unknown unsettled unspecific unsure wide
Antonyms
STRONGEST
bounded definite finite limited
WEAK
certain distinct sure
ADJECTIVE
indeterminate
Synonyms
STRONG
undetermined
WEAK
borderless general inconclusive indefinite indistinct inexact undefined unfixed unspecified unstipulated
Antonyms
WEAK
certain definite determined exact fixed measurable sure
ADJECTIVE
inexact
Synonyms
WEAK
ambiguous vague
ADJECTIVE
lax
Synonyms
STRONGEST
careless indifferent lenient negligent sloppy soft vague
WEAK
any way asleep on job behindhand broad casual delinquent derelict devil-may-care disregardful easygoing flaccid forgetful general inaccurate indefinite inexact neglectful nonspecific oblivious overindulgent paying no mind regardless shapeless slipshod unmindful yielding
Antonyms
STRONGEST
attentive careful caring concerned hard mindful severe
WEAK
rigid strict tight
ADJECTIVE
loose
Synonyms
STRONG
detached diffuse disconnected disordered obscure rambling
WEAK
ill-defined inaccurate indistinct negligent random remiss
Antonyms
WEAK
clear definite precise
ADJECTIVE
nebulous
Synonyms
STRONGEST
ambiguous amorphous hazy murky shadowy vague
WEAK
cloudy dark dim indefinite indeterminate indistinct misty shapeless uncertain unclear unformed
Antonyms
STRONGEST
bright certain clear definite distinct sure
WEAK
apparent obvious plain
ADJECTIVE
rough
Synonyms
STRONGEST
foggy hazy sketchy uncertain
STRONG
estimated general
WEAK
amorphous inexact proximate rude unprecise vague
Antonyms
STRONGEST
certain clear definite sure
WEAK
accurate calm complete courteous even level mild moderate nice polished polite precise refined regular smooth sophisticated temperate
ADJECTIVE
rude
Synonyms
STRONGEST
harsh unpleasant violent
WEAK
abrupt guessed imperfect in the ballpark inexact proximate rough sharp startling stormy surmised turbulent unprecise
Antonyms
STRONGEST
gentle mild peaceful pleasing
WEAK
exact gradual kind mannerly nice polished polite refined respectful smooth sophisticated
ADJECTIVE
truthless
Synonyms
WEAK
counterfactual deceitful deceptive delusive deviant disloyal dissembling distorted erroneous faithless fallacious false fictitious forsworn hollow inaccurate inconstant incorrect inexact lying meretricious misleading mistaken off out of line perfidious perjured prevaricating recreant sham specious spurious traitorous treacherous two-faced unfaithful unloyal unsound untrue untrustworthy untruthful wide wrong
ADJECTIVE
unclear
Synonyms
STRONGEST
ambiguous confused fuzzy hazy obscure uncertain unsettled unsure vague
WEAK
blurry cloudy dim elusive intangible nebulous shadowy
Antonyms
STRONGEST
certain clear definite explicit secure sure
ADJECTIVE
uncritical
Synonyms
STRONGEST
cursory perfunctory
WEAK
careless easily pleased imperceptive imprudent inaccurate indiscriminate offhand shallow slipshod superficial undiscerning undiscriminating unexacting uninformed unperceptive unselective unthinking
Antonyms
WEAK
critical discriminating formal fussy important
ADJECTIVE
ungrammatical
Synonyms
STRONG
ill-formed
WEAK
improper inaccurate incorrect nonstandard solecistic
Antonyms
WEAK
grammatical well-formed
ADJECTIVE
untrue
Synonyms
STRONGEST
apocryphal deceptive distorted erroneous false fictitious inaccurate incorrect misleading mistaken specious spurious unfaithful unsound untruthful wrong
WEAK
cheating counterfactual deceitful delusive deviant disloyal dissembling faithless fallacious forsworn hollow inconstant inexact lying meretricious off out of line perfidious perjured prevaricating recreant sham traitorous treacherous two-faced unloyal untrustworthy wide
Antonyms
STRONGEST
accurate actual authentic correct factual genuine honest just precise real right sound straight true truthful valid
WEAK
faithful
ADJECTIVE
vague
Synonyms
STRONGEST
ambiguous dubious equivocal faint fuzzy hazy lax nebulous obscure uncertain unclear unsure
WEAK
amorphous amphibological bewildering bleary blurred cloudy dark dim doubtful dreamlike enigmatic generalized ill-defined impalpable indefinite indeterminate indistinct inexplicable loose misunderstood muddy perplexing problematic puzzling questionable shadowy superficial tenebrous undetermined unexplicit unintelligible unknown unsettled unspecified
Antonyms
STRONGEST
apparent certain clear definite determined distinct explicit obvious plain secure sure

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The microbe, Methanosarcina acetivorans, appears to function normally despite this flexible interpretation, demonstrating that life can operate with a slightly imprecise code.

From Science Daily • Feb. 28, 2026

Barca could not get out of first gear in a dry first half and their passing was unusually imprecise.

From Barron's • Jan. 25, 2026

Pepin-Neff adds that broad, imprecise language around encounters is likely fuelling fears and distorting people's understanding of the risk.

From BBC • Jan. 23, 2026

Other options companies have explored include training on synthetic data and through simulations, which provide an easier way to scale but can offer more imprecise results.

From MarketWatch • Dec. 27, 2025

We were not unforward nor imprecise in our criticism of our officers, muttering that cowering timidity was but poor cover for past incompetence.

From "The Astonishing Life of Octavian Nothing, Traitor to the Nation, Volume II: The Kingdom on the Waves" by M.T. Anderson

Vocabulary lists containing imprecise

im-

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

Way Off: Synonyms for "Wrong"

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

im-

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!