Thesaurus.com
Dictionary.com
Definitions

unanswerable

[uhn-an-ser-uh-buhl, -ahn-] / ʌnˈæn sər ə bəl, -ˈɑn- /
ADJECTIVE
conclusive
Synonyms
STRONGEST
compelling convincing decisive indisputable irrefutable irrevocable precise unambiguous undeniable unmistakable
WEAK
absolute all out clear clinching cogent deciding demonstrative determinant determinative flat out incontrovertible irrefragable irrefrangible litmus test resolving revealing settling straight out telling ultimate unarguable unconditional unquestionable what you see is what you get
Antonyms
STRONGEST
ambiguous disputable doubtful dubious indefinite questionable refutable uncertain unsure
WEAK
inconclusive
ADJECTIVE
final
Synonyms
STRONGEST
decisive definite finished
STRONG
absolute determinative
WEAK
decided determinate incontrovertible irrefutable irrevocable settled unappealable
Antonyms
STRONGEST
indefinite
WEAK
beginning commencing continuing first inconclusive interim introductory opening persistent starting temporary
ADJECTIVE
immune
Synonyms
STRONGEST
exempt resistant unaffected
STRONG
clear free safe
WEAK
allowed favored hardened to insusceptible irresponsible licensed not affected not liable not subject privileged protected unliable unsusceptible
Antonyms
STRONG
hindered
WEAK
susceptible unguarded unprotected vulnerable
ADJECTIVE
impossible
Synonyms
STRONGEST
absurd hopeless ludicrous outrageous preposterous unacceptable unreasonable
STRONG
offensive undesirable
WEAK
egregious improper incongruous objectionable unsuitable
Antonyms
STRONGEST
acceptable
STRONG
pleasing
WEAK
achievable believable governable manageable tenable tolerable
ADJECTIVE
irrefutable
Synonyms
STRONGEST
indisputable ironclad unassailable undeniable
WEAK
accurate apodictic can bet on it certain double-checked evident final inarguable incontestable incontrovertible indubitable invincible irrebuttable irrefragable irresistible nof ifs ands or buts obvious odds-on positive proven set sure unimpeachable unquestionable
Antonyms
STRONGEST
disputable indefinite
WEAK
doubtful dubious questionable refutable uncertain
ADJECTIVE
irresponsible
Synonyms
STRONGEST
capricious immature thoughtless
WEAK
carefree devil-may-care feckless fickle flighty fly-by-night giddy harebrained ill-considered incautious lax loose no-account rash scatterbrained shiftless unaccountable uncareful undependable unpredictable unreliable unstable untrustworthy wild
Antonyms
WEAK
accountable careful liable reliable responsible trustworthy
ADJECTIVE
undeniable
Synonyms
STRONGEST
certain evident indisputable irrefutable obvious unassailable unquestionable
WEAK
actual beyond doubt beyond question binding clear compulsory for sure inarguable incontestable incontrovertible indubitable manifest necessary no ifs and or buts obligatory open and shut patent positive real sound sure sure thing true undoubted
Antonyms
STRONGEST
disputable doubtful dubious indefinite obscure questionable refutable uncertain unclear unreliable unsure vague
WEAK
contestable doubted unproven
ADJECTIVE
valid
Synonyms
STRONGEST
accurate authentic binding compelling conclusive credible good lawful legal legitimate logical original persuasive solid true well-founded
WEAK
attested authoritative bona fide cogent confirmed convincing determinative efficacious efficient good-faith in force irrefutable just kosher legit official potent powerful proven pure sound stringent strong substantial telling tested trustworthy ultimate unadulterated uncorrupted weighty well-grounded
Antonyms
STRONGEST
counterfeit evil fake false illegal illegitimate illicit improbable invalid unlawful unlikely unreal unreliable untrustworthy wrong
WEAK
unacceptable unsound

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.

Together was a creation of the young, with their devastating and unanswerable insight: “You’re leaving—we’re coming.”

From The Wall Street Journal • Nov. 11, 2025

Faced with this ludicrously broad question, Kahlil either ventured his best guess as to which group memberships are relevant, or, more likely, he simply answered “no” to this largely unanswerable question.

From Slate • Sep. 15, 2025

To bring the most unserious of serious topics to life, BBC Sport recently asked about 250 of its staff across the UK to take on the unanswerable question.

From BBC • Mar. 26, 2025

The question, unanswerable on its face, assumes special importance when national security is at stake.

From Salon • Nov. 24, 2024

Exhausted, stomach rumbling, mind spinning over the same unanswerable questions, Harry fell into an uneasy sleep.

From "Harry Potter And The Chamber Of Secrets" by J. K. Rowling

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.