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Definitions

deductive

[dih-duhk-tiv] / dɪˈdʌk tɪv /
ADJECTIVE
deducible
Synonyms
WEAK
a priori consequent derivable dogmatic following inferable inferential provable reasoned traceable
ADJECTIVE
determinable
Synonyms
WEAK
ascertainable assayable discoverable judicable measurable provable
ADJECTIVE
dogmatic
Synonyms
STRONGEST
assertive categorical pragmatic reasoned
WEAK
a priori as a matter of course authoritarian authoritative axiomatic by fiat by natural law by nature canonical deducible derivable doctrinaire doctrinal eternal excathedra formal imperative inevitable on faith oracular orthodox peremptory positive prophetic systematic theoretical unchangeable unerring unqualified
Antonyms
WEAK
ambiguous amenable doubtful doubting dubious equivocal flexible fluctuating indecisive manageable not positive obedient questioning skeptical submissive uncertain vacillating
ADJECTIVE
rational
Synonyms
STRONGEST
analytical balanced deliberate enlightened impartial intelligent judicious levelheaded logical lucid normal prudent reasonable sane sensible sober stable thoughtful wise
STRONG
calm cool intellectual knowing objective reasoning sound synthetic thinking
WEAK
all there cerebral circumspect cognitive collected discerning discriminating far-sighted perspicacious philosophic ratiocinative reflective sagacious together well-advised
Antonyms
STRONGEST
careless confused foolish idiotic illogical insane irrational nonsensical senseless stupid thoughtless unbalanced unintelligent unreasonable unstable unsystematic unwise
STRONG
agitated excited
WEAK
ridiculous unrealistic unsound
ADJECTIVE
scientific
Synonyms
STRONGEST
experimental mathematical objective
WEAK
accurate clear controlled exact logical methodical precise sound
Antonyms
WEAK
artistic
ADVERB
a priori
Synonyms
WEAK
based on theory deduced derivable inferred presumptive rational reasoned supposed theoretical

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.

It’s classic deductive detective work meets Japanese comfort fare.

From Salon • Dec. 26, 2025

Not through any kind of intuition or deductive superpower, mind you.

From Los Angeles Times • Jan. 9, 2025

Instead of receiving science through set experiments with known outcomes, students should learn to apply deductive and inductive reasoning to weigh information before blindly accepting results.

From Scientific American • Aug. 16, 2023

Holcomb, as we’ve seen, can’t figure out how Brooks’s grift operated, so he turns to Perry, whose deductive mind he recognizes as superior to his own, for help.

From New York Times • Apr. 10, 2023

She was a deductive mastermind, he supposed, but her gift wasn’t honed from training her mind for acute observation.

From "The Last Last-Day-of-Summer" by Lamar Giles

Vocabulary lists containing deductive

The AP English Exam: Rhetorical and Literary Terms 1

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Divergent

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Writing - High School

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