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Definitions

expectancy

[ik-spek-tuhn-see] / ɪkˈspɛk tən si /
NOUN
anticipation
Synonyms
STRONG
assumption assurance belief calculation confidence conjecture expectation hope likelihood outlook prediction presentation presentiment presumption probability prospect reliance supposition surmise suspense trust view waiting
WEAK
looking forward
Antonyms
STRONG
disbelief distrust doubt fact fear knowledge proof reality truth uncertainty unlikelihood

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.

Life expectancy at birth for 2022 and 2024 was 83.2 years- higher than the average of 80 across the countries surveyed.

From BBC • Mar. 26, 2026

It is incurable, with a median life expectancy of 12 to 18 months—in other words, a death sentence.

From Barron's • Mar. 12, 2026

One problem, as Fronstin puts it, is that “average” life expectancy doesn’t really help any individual very much — half of people will live longer than the average, and some will live much longer.

From MarketWatch • Mar. 5, 2026

Their findings suggest that higher tyrosine levels are associated with shorter life expectancy in men, raising the possibility that longevity strategies may need to differ by sex.

From Science Daily • Feb. 26, 2026

They all bore more or less the same expression, one of expectancy mingled with apprehension.

From "Murder on the Orient Express" by Agatha Christie

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