My courage failed me at the crucial moment.
Source: tatoeba (66495)
Crucial
/ˈkɹuː.ʃəl/
Synonyms for "crucial" (225 found)
Ranked by relevance and common usage.
Closest matches (45)
Adjective(18 words)
essentialall importantall-importantbasic teaching conceptbigcabinet-levelcardinal descriptorcentral ecological rolecore curriculum areacore learning importancecriticalcritical art fieldcritical care equipmentcritical descriptorcritical interpretationcritical reviewcritical turning pointdecisive
Noun(11 words)
be seriousbottomcapitalecentral focuscentral governmentscore pointcritical momentcritical pointdefining termdeterminant formuladetermining
Verb(1 words)
defining determiner
Strong matches (68)
elementalelementaryembryonicemergentessenceessentialexigentfatefulfundamentalgenerativegeneticgerminalgoodgravegreatheavyhigh-pressurehigh-priorityimperativeimperious
Show 7 more words
Noun(11 words)
emergency numberemergency resupplyessential life science conceptessential questionessential readinggoverno centralhistoric turning pointhothrimmediate issuesimportance standardintensifying adverb
Adjective(30 words)
emergency procedureessential biological functionessential biology conceptessential conceptessential goodsessential ideaessential micronutrientessential nutrientessential partessential questionsessential service provisionessential skills prioritizationfatal omissionfundamental constantgreat opportunityhigh-stakesimmediate eventimportantimportant matterimportant personal trait
Show 10 more words
indispensableinstrumental duetinstrumental musical pieceinstrumental roleinstrumental soloinstrumental techniquesintegral governorintense pursuitintense trophic interactioninvaluable
Related words (112)
Noun(42 words)
keykey cluekey featurekey framekey pointkeywordlife sustaining processlifesavingliterary criticismmain pointmajor generalmaterial descriptorsmaterial occurrencemore turning-pointmore watershedmost decisivemost essentialmost importantmost pivotalmost required
Show 22 more words
most significantmost strategicmusical instrumentprimesrelevance to resultsserious descriptortechnology adoption turning pointtipping-point factortrophically importantturning pointsturning-pointturning-point changeturning-point change metricturning-point decisionturning-point eventturning-point momentturning-point moment analysiswatershedwatershed eventwatershed momentwatershed policywatershed policy impact
Adjective(35 words)
key argumentkey determinantkey factkey influencekey learning conceptkey scenekey tenetlarger numbermajor turning pointmajor turning pointsmaterial markernecessaryof the essencepivotalpivotal changepivotal featurepivotal turning pointpivotal turning-pointsalientsalient feature
Show 15 more words
scientific turning pointserious issuesignificant resultstrategic goalsturning point in scienceturning-point descriptorturning-point eraurgent issueurgent needurgent requestvalued rolevitalvital functionvital life processesweightiest
Determiner(6 words)
more turning-point changemost emergency water supplymost key-pointmost political policymost turning-pointmost watershed
Adverb(1 words)
most important factor
Verb(1 words)
Preposition(1 words)
of prime importance
Choosing the right synonym
- Closest matches in this entry: essential, aboriginal, acute, all important, all-important.
- Sentence evidence is available for crucial, so synonym choice can be checked against real usage rather than a flat word list.
- Ranking signals come from wordnet, opengloss, moby, derived_reverse, and related lexical sources.
Synonym selection checklist
- Match the part of speech before comparing meanings.
- Check whether the synonym changes intensity, formality, or emotional tone.
- Read the replacement inside the full sentence, not just beside "crucial".
- Prefer the clearest word over the most unusual word when writing for speed or comprehension.
When not to replace "crucial"
Keep "crucial" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
If two options seem close, choose the one that best matches the audience and purpose of the sentence.
Replacement workflow
1. Preserve meaning
Choose a synonym only if it keeps the core idea of "crucial" intact in the sentence you are editing.
2. Tune tone
Check whether the replacement sounds more formal, casual, emotional, technical, or forceful than the original word.
3. Re-read context
Read the full sentence after the swap. Keep the synonym only when the sentence becomes clearer or more precise.
Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.
Final fit check
After choosing a replacement for "crucial", read the sentence once for meaning and once for rhythm. The best synonym should feel natural in the full sentence, not only accurate in a word list.
If the synonym makes the sentence slower, vaguer, or more dramatic than intended, keep "crucial" or choose a simpler alternative from the closest-match group.
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
More general
3 entriesMore specific
6 entriescrucial decisioncrucial detailcrucial evidencecrucial factorcrucial momentcrucial step
Collocations
6 entriescrucial decisioncrucial evidencecrucial factorcrucial momentcrucial rolecrucial step
Inflections
2 entriesmore crucialmost crucial
Derivations
2 entriesAntonyms
1 entriessimilar
10 entriesSample sentences
16 total sentences available.
The negotiations stepped into a crucial phase.
Source: tatoeba (240292)
We are facing a crucial time.
Source: tatoeba (241605)
Today's game will be a crucial battle; the result will be decisive.
Source: tatoeba (242574)
Showing 4 of 16 available sentences.
Common questions
What are the closest synonyms for "crucial"?
Closest matches include essential, aboriginal, acute, all important, all-important.
How should I check whether a synonym fits "crucial"?
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.