Synonyms and Antonyms for significant

Synonyms:

• probatory
• meaningful
• epochal
• monumental
• evidential
• momentous
• evidentiary
• of import
• noteworthy
• earthshaking
• large
• fundamental
• world-shattering
• world-shaking
• probative
• operative
• prodigious
• profound
• portentous
• important
• significance
• remarkable
• epoch-making

Antonyms:

• insignificance
• insignificant
• meaningless
• inessential
• worthless

Synonyms:

• considerable
• substantial

Antonyms:

• inconsiderable
• purposeless
• little

Synonyms:

• pregnant
• meaning
• meaningful

Antonyms:

• meaningless
• small
• unimportance
• unimportant