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
• symbolical
• 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-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

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
• 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

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

Antonyms & Near Antonyms

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

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

Advertisement In line with multiple other significant rulings issued by the court on Friday, the six conservative judges Clarence Thomas, Neil Gorsuch, Amy Coney Barrett, Brett Kavanaugh, Samuel Alito and Chief Justice John Roberts comprised the majority. —Callum Sutherland, Time, 27 June 2025

The company operates with significant scale, reaching over 750 million weekly viewers across 80-plus television channels and streaming platform JioHotstar. —Naman Ramachandran, Variety, 27 June 2025

In the past five years, the museum has focused on significant improvements to its existing building, including the addition of the new Berg Family Library, upgraded flooring, and other critical enhancements. —News Release, San Diego Union-Tribune, 27 June 2025

Among these are some of the most significant cases argued this term, including a pivotal question concerning birthright citizenship. —Brittney Melton, NPR, 27 June 2025

Phrases Containing significant

• significant other