Synonyms of significant
1 importantDictionary • It is the first drug that seems to have a significant effect on this disease.
important • an important economic challenge to the government
marked • There has been a marked increase in crimes against property.
notable • The most notable architectural feature of the town is its castle.
serious • I regard this as a serious matter.
material • The company failed to disclose material information.
vital • a blockade which could cut off vital oil and gas supplies
critical • The incident happened at a critical point in the campaign.
considerable • They were very considerable men who made an enormous contribution to the Party.
pronounced • Most of the exhibition has a pronounced Scottish theme.
momentous • the momentous decision to send in the troops
weighty • Surely such weighty matters merit a higher level of debate?
noteworthy • None of these buildings are noteworthy for their architecture.
, of no consequence
2 meaningfulDictionary • The old woman gave her a significant glance.
meaningful • a meaningful and constructive dialogue
expressive • All his poems are expressive of his love for nature.
eloquent • Her only reply was an eloquent glance at the clock.
knowing • Ron gave her a knowing smile.
telling • How a man shaves is a telling clue to his age.
meaning • He nodded and gave me a meaning look.
pregnant • There was a long, pregnant silence.
indicative • Often physical appearance is indicative of how a person feels.
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• They were very considerable men who made an enormous contribution to the Party.
criticalA critical time, factor, or situation is extremely important.
• The incident happened at a critical point in the campaign.
Thesaurus for significant from the Collins English Thesaurus