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Showing results for assumption. Search instead for assumpti.
Definitions

assumption

[uh-suhmp-shuhn] / əˈsʌmp ʃən /
NOUN
taking something for granted; something expected
Synonyms
STRONGEST
acceptance belief expectation guess hunch hypothesis inference premise presumption supposition suspicion theory
STRONG
conjecture fancy posit postulate postulation presupposition shot stab supposal surmise theorization
WEAK
accepting assuming shot in the dark sneaking suspicion
Antonyms
STRONGEST
disbelief fact knowledge measurement proof reality truth
WEAK
doubt genuineness naturalness realness unexpected
NOUN
assuming possession, power
Synonyms
STRONGEST
acceptance
STRONG
acquisition adoption appropriation arrogation embracing grab seizure takeover taking undertaking usurpation
WEAK
accepting assuming shouldering taking on taking up
Antonyms
STRONG
rejection
WEAK
doubt genuineness naturalness reality realness unexpected
NOUN
arrogance
Synonyms
STRONGEST
presumption
STRONG
brass chutzpah cockiness conceit imperiousness insolence nerve pride sass self-importance
Antonyms
STRONG
humility modesty shyness timidity
WEAK
doubt genuineness naturalness reality realness unexpected

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.

He was so locked into the assumption that only a man could have killed Cynthia that he disregarded Perkins’ multiple alleged confessions.

From Slate • Apr. 6, 2026

Market reaction: Treasury yields rose after the employment report on the assumption a stronger labor market could discourage the Fed from cutting interest rates.

From MarketWatch • Apr. 3, 2026

The assumption here is that existing computers are unable to reverse-engineer a private key from a public key.

From Barron's • Apr. 1, 2026

According to the tankan, major manufacturers forecast a roughly 2% drop in ordinary profits this fiscal year, based on the assumption that the dollar will average 148.88 yen.

From The Wall Street Journal • Apr. 1, 2026

In effect, Madison got what he had always demanded: settlement before assumption.

From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis