Synonyms of significant

significant

adjective

sig-ˈni-fi-kənt 

1

as in major

having great meaning or lasting effect

made a significant change in the procedure for applying for citizenship

Synonyms & Similar Words

• major
• important
• historic
• big
• substantial
• much
• meaningful
• monumental
• tectonic
• exceptional
• momentous
• remarkable
• distinguished
• pivotal
• consequential
• eventful
• notable
• noteworthy
• outstanding
• decisive
• serious
• earthshaking
• earth-shattering
• prominent
• distinctive
• weighty
• material
• strategic
• great
• crucial
• worthy
• valuable
• seminal
• impressive
• fatal
• worthwhile
• key
• fateful
• critical
• famous
• sincere
• earnest
• prestigious
• eminent
• essential
• grave
• central
• illustrious
• notorious
• heavy
• vital
• all-important
• renowned
• noble
• preeminent

Antonyms & Near Antonyms

• small
• minor
• little
• insignificant
• slight
• negligible
• trivial
• unimportant
• inconsiderable
• inconsequential
• trifling
• worthless
• petty
• paltry
• unknown
• obscure
• anonymous
• nameless
• uncelebrated

2

as in indicative

indicating something

the town's generous library budget is significant of the value its residents place on learning

Synonyms & Similar Words

• indicative
• reflective
• telltale
• characteristic
• signifying
• denotative
• symbolic
• denoting
• symptomatic
• referring
• allusive
• expressive
• demonstrative
• alluding
• exhibiting
• suggestive
• implying
• hinting
• insinuating
• connoting

3

as in influential

having great power or influence

a producer who is playing a significant role in the creation of the new film

Synonyms & Similar Words

• influential
• powerful
• important
• strong
• prominent
• potent
• mighty
• senior
• heavy
• notable
• outstanding
• great
• distinguished
• top
• heavy-duty
• celebrated
• capable
• able
• noteworthy
• effective
• dominant
• high-level
• puissant
• famous
• efficient
• competent
• renowned
• notorious
• prestigious
• robust
• eminent
• dynamic
• illustrious
• vigorous
• famed
• authoritarian
• despotic
• energetic
• noble
• autocratic
• tyrannical
• forceful
• dictatorial
• magisterial
• preeminent
• high-powered

Antonyms & Near Antonyms

• little
• insignificant
• unimportant
• weak
• powerless
• helpless
• impotent
• feeble
• unknown
• flimsy
• obscure
• infirm
• frail
• anonymous
• incapable
• ineffective
• nameless
• incompetent
• unfit
• unqualified
• unskilled
• uncelebrated
• inept
• inexpert
• unskillful

4

as in considerable

sufficiently large in size, amount, or number to merit attention

paid a significant amount of money for the movie rights to the book

Synonyms & Similar Words

• considerable
• substantial
• sizable
• major
• tremendous
• huge
• good
• substantive
• big
• great
• respectable
• handsome
• massive
• healthy
• goodly
• tidy
• largish
• biggish
• enormous
• hefty
• colossal
• voluminous
• immense
• gigantic
• bulky
• monumental
• oversize
• prodigious
• outsize
• astronomical
• mammoth
• whopping
• monstrous
• titanic
• herculean
• jumbo
• hulking
• elephantine
• bumper
• king-size

Antonyms & Near Antonyms

• insignificant
• negligible
• nominal
• inconsiderable
• inconsequential
• trivial
• unimportant
• insubstantial
• marginal
• slight
• trifling
• petty
• small
• puny
• meager
• paltry
• minute
• little
• tiny
• piddling
• measly
• picayune
• undersized
• diminutive
• pocket
• smallish
• miniature
• picayunish
• bitty
• pocket-size
• pygmy
• pint-size

5

as in suggestive

clearly conveying a special meaning (as one's mood)

after remarking that tardiness was on the rise, our boss cast a significant glance my way

Synonyms & Similar Words

• suggestive
• meaningful
• revealing
• eloquent
• expressive
• meaning
• reminiscent
• revelatory
• pregnant
• vivid
• graphic
• pictorial
• evocative
• rich
• redolent
• flavorful
• weighty
• sententious
• full-bodied

Antonyms & Near Antonyms

• blank
• vacant
• deadpan
• inexpressive
• expresionless
• unexpressive

Example Sentences

Recent Examples of significant

His most significant individual victory comes against Indrajit, another of Ravana’s sons and one of Lanka’s mightiest warriors. — Tamanna Nangia, Encyclopedia Britannica, 30 Oct. 2026

While races for Congress or governors' mansions may dominate the airwaves, some of the most competitive and significant contests are farther down the ballot. — Carmen Russell-Sluchansky, NPR, 30 Oct. 2026

There is a sense that the exhibition’s most significant revelation is neither synesthetic experiment nor vanguardist provocation but, merely and monumentally, Picabia himself. — Nicole Kaack, ARTnews.com, 30 Oct. 2026

In that case, the attackers stole an amount equal to a significant portion of North Korea’s reported annual gross domestic product in a matter of minutes. — Sean Lyngaas, CNN Money, 30 Oct. 2026

Phrases Containing significant

• significant other