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Definitions

crucial

[kroo-shuhl] / ˈkru ʃəl /
ADJECTIVE
critical, important
Synonyms
STRONGEST
bottom-line central compelling deciding decisive essential imperative momentous necessary pivotal pressing touchy urgent vital
WEAK
acute clamorous climactic desperate dire hanging by thread high-priority insistent on thin ice searching showdown touch and go
Antonyms
STRONGEST
inessential insignificant minor optional secondary trivial unimportant unnecessary voluntary
WEAK
uncritical

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.

There is no natural or preordained alliance between these groups, and at crucial moments their interests and agendas may differ.

From Salon • Apr. 6, 2026

However, the bank’s net interest margin remains crucial for profitability and the analysts expect a 23bp on-year compression in 2026 NIM on lower asset yields.

From The Wall Street Journal • Apr. 6, 2026

To be clear, DeShazier thinks that solidarity is crucial.

From Salon • Apr. 6, 2026

"You would expect them to win the game in hand and that game against Arsenal is crucial," former Premier League midfielder Leon Osman said on BBC Radio 5 Live.

From BBC • Apr. 4, 2026

Given their low food supplies, traveling down the river in a timely and efficient manner was crucial to their survival.

From "Death on the River of Doubt" by Samantha Seiple

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