Synonyms of significant

significant

adjective

sig-ˈni-fi-kənt 

1

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
• graphical
• vivid
• graphic
• pictorial
• evocative
• rich
• redolent
• weighty
• flavorful
• sententious
• full-bodied

Antonyms & Near Antonyms

• unexpressive

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
• symbolical
• denoting
• symptomatic
• referring
• allusive
• expressive
• demonstrative
• alluding
• exhibiting
• suggestive
• implying
• hinting
• insinuating
• connoting

3

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

4

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-duty
• heavy
• notable
• outstanding
• great
• distinguished
• top
• celebrated
• noteworthy
• capable
• puissant
• able
• dominant
• effective
• high-level
• famous
• efficient
• competent
• renowned
• prestigious
• notorious
• robust
• eminent
• illustrious
• dynamic
• vigorous
• famed
• magisterial
• authoritarian
• despotic
• preeminent
• energetic
• autocratic
• tyrannical
• noble
• dictatorial
• forceful
• autocratical
• tyrannic
• 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

5

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
• good
• huge
• sizeable
• substantive
• big
• great
• respectable
• handsome
• massive
• healthy
• goodly
• tidy
• largish
• biggish
• enormous
• outsized
• colossal
• hefty
• voluminous
• immense
• gigantic
• outsize
• bulky
• oversized
• monumental
• oversize
• prodigious
• astronomical
• mammoth
• whopping
• monstrous
• titanic
• herculean
• astronomic
• jumbo
• hulking
• bumper
• elephantine
• king-sized
• king-size

Antonyms & Near Antonyms

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

Try This Instead

For

Try This

significant differences

remarkable differences

drastic differences

tremendous differences

considerable differences

substantial differences

a significant increase

an enormous increase

a major increase

a sizable increase

a drastic increase

a massive increase

significant changes

notable changes

drastic changes

noteworthy changes

tremendous changes

dramatic changes

a significant relationship

a meaningful relationship

an important relationship

a relevant relationship

a prominent relationship

a notable relationship

a significant role

a crucial role

an integral role

a vital role

an influential role

a prominent role

Example Sentences

Recent Examples of significant

The Biden administration was caught off guard by the brief challenge to South Korea’s democracy, experts say, after the White House invested significant time to forge a landmark security partnership between Washington, Seoul and Tokyo. —Jessie Yeung, CNN Money, 3 June 2025

But as in previous years, state lawmakers failed to take any significant action on hemp in its latest session, which ended Saturday. —Robert McCoppin, Chicago Tribune, 3 June 2025

The study didn’t find any significant link between drinking decaf coffee or tea and the likelihood of healthy aging. —Chantelle Lee, Time, 3 June 2025

However, data shows a significant recent increase in antisemitic terrorist plots or attacks targeting Jewish people, Zionists or Jewish institutions. —Audrey Conklin, FOXNews.com, 3 June 2025

Phrases Containing significant

• significant other