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Definitions

important

[im-pawr-tnt] / ɪmˈpɔr tnt /
ADJECTIVE
significant
Synonyms
STRONGEST
big major serious significant valuable weighty
STRONG
consequential earnest epochal far-reaching front-page historic material momentous of consequence of moment of substance page-one paramount relevant salient seminal substantial
WEAK
decisive determining fateful grave heavy of note
Antonyms
STRONG
inappreciable insignificant little negligible small trifling trivial unimportant unsubstantial
ADJECTIVE
eminent, influential, outstanding
Synonyms
STRONGEST
eminent esteemed great influential of note outstanding powerful prominent
STRONG
big-time celebrated distinguished famous foremost grand high-level high-profile high-ranking high-up preeminent
WEAK
illustrious major-league notable noted
Antonyms
STRONGEST
common ordinary
WEAK
little normal small unknown
ADJECTIVE
major
Synonyms
STRONGEST
chief key leading major primary principal
STRONG
ascendant central staple
Antonyms
STRONG
auxiliary marginal minor secondary
ADJECTIVE
crucial
Synonyms
STRONGEST
critical crucial essential imperative necessary urgent vital
STRONG
pivotal
WEAK
pressing
Antonyms
STRONGEST
inessential uncritical unnecessary
WEAK
nonessential optional trivial
ADJECTIVE
having personal or emotional value
Synonyms
STRONG
cherished dear mattering much meaningful priceless valued
Antonyms
STRONG
meaningless

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.

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From Slate • Apr. 4, 2026

The People’s Bank of China, arguably the single most important driver of the central-bank buying trend since 2022, appears to have officially paused its gold purchases, said GoldCore’s Skoyles.

From MarketWatch • Apr. 4, 2026

Overall, this work marks an important advance in the field of MXenes.

From Science Daily • Apr. 4, 2026

The hardest and most "important" item to source was the yellow flotation barrels, which are like those used by the characters in the blockbuster to track the shark.

From BBC • Apr. 4, 2026

“It’s important to keep all my professional options open,” Traveler said, politely ignoring my untimely demise, “but I’m more interested in astronomy than murder.”

From "Bye Forever, I Guess" by Jodi Meadows

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