indelible
adjective
in·del·i·ble in-ˈde-lə-bəl 
1
a
: that cannot be removed, washed away, or erased
b
: making marks that cannot easily be removed
an indelible pencil
2
a
: lasting
indelible memories
b
: unforgettable, memorable
an indelible performance
indelibility
(ˌ)in-ˌde-lə-ˈbi-lə-tē
noun indelibly
in-ˈde-lə-blē
adverb 
Synonyms
- memorable
- unforgettable
See all Synonyms & Antonyms 
Example Sentences
But the most indelible evening of the rebellion for me was the night I had first got beaten. 
Amiri Baraka, The Autobiography of Leroi Jones, 1984 All wars change society and hence leave an indelible imprint on literary culture. Michiko Kakutani, New York Times Book Review, 15 Apr. 1984 The illustrator of children's books surpasses other artists in the impressionability of his audience; it is beyond calculation, no doubt, what touches will produce an indelible effect, when the receiving surface of a child's psyche is so soft and mysteriously laden and momentous with its own raw energy. John Updike, New York Times Book Review, 4 Dec. 1983 winning the state basketball championship was our team's most indelible experience
Amiri Baraka, The Autobiography of Leroi Jones, 1984 All wars change society and hence leave an indelible imprint on literary culture. Michiko Kakutani, New York Times Book Review, 15 Apr. 1984 The illustrator of children's books surpasses other artists in the impressionability of his audience; it is beyond calculation, no doubt, what touches will produce an indelible effect, when the receiving surface of a child's psyche is so soft and mysteriously laden and momentous with its own raw energy. John Updike, New York Times Book Review, 4 Dec. 1983 winning the state basketball championship was our team's most indelible experience Recent Examples on the Web Jo Ann is a true trailblazer in our industry who has left an indelible mark on our business. Alex Weprin, The Hollywood Reporter, 13 Sep. 2022 None of the current players are old enough to remember when Okafor, 39, left his indelible mark on the program 18 years ago. Dom Amore, Hartford Courant, 10 Sep. 2022 One dark chapter in history left an indelible mark on filmmaker Sarah Botstein's family. CBS News, 4 Sep. 2022 The writer has made an indelible mark in both horror and sci-fi literature. Milan Polk, Men's Health, 31 Aug. 2022 Last year, the Foo Fighters were honored with the Global Icon Award, which celebrates an artist or band whose career, impact, and influence have left an indelible mark on the music landscape. Sara Netzley, EW.com, 29 Aug. 2022 Gurrumul left an indelible mark on Australia’s music landscape. Lars Brandle, Billboard, 2 Aug. 2022 Traditional means of disposing of the dead—burial in wood and metal caskets, or cremation—leave an indelible mark on the planet, polluting the soil or the air. William Ralston, Wired, 26 July 2022 Read full article Senate President Karen Spilka’s late sister, Susie, had Down syndrome, and their relationship has left an indelible mark on the Ashland Democrat. Shirley Leung, BostonGlobe.com, 18 July 2022 See More
Alex Weprin, The Hollywood Reporter, 13 Sep. 2022 None of the current players are old enough to remember when Okafor, 39, left his indelible mark on the program 18 years ago. Dom Amore, Hartford Courant, 10 Sep. 2022 One dark chapter in history left an indelible mark on filmmaker Sarah Botstein's family. CBS News, 4 Sep. 2022 The writer has made an indelible mark in both horror and sci-fi literature. Milan Polk, Men's Health, 31 Aug. 2022 Last year, the Foo Fighters were honored with the Global Icon Award, which celebrates an artist or band whose career, impact, and influence have left an indelible mark on the music landscape. Sara Netzley, EW.com, 29 Aug. 2022 Gurrumul left an indelible mark on Australia’s music landscape. Lars Brandle, Billboard, 2 Aug. 2022 Traditional means of disposing of the dead—burial in wood and metal caskets, or cremation—leave an indelible mark on the planet, polluting the soil or the air. William Ralston, Wired, 26 July 2022 Read full article Senate President Karen Spilka’s late sister, Susie, had Down syndrome, and their relationship has left an indelible mark on the Ashland Democrat. Shirley Leung, BostonGlobe.com, 18 July 2022 See More Word History
Etymology
Middle English indelyble, from Medieval Latin indelibilis, alteration of Latin indelebilis, from in- + delēre to delete
First Known Use
15th century, in the meaning defined at sense 1a
Kids Definition
indelible
adjective
in·del·i·ble in-ˈde-lə-bəl
1
: impossible to remove or forget
He made an indelible impression.
2
: making marks not easily removed
indelible ink
indelibly
adverb
as in forever
for all time the advertiser hopes that the slogan will be indelibly imprinted on consumers' memories Synonyms & Similar Words
Relevance
- forever
- permanently
- always
- eternally
- everlastingly
- forevermore
- perpetually
- for good
- evermore
- ever
- ay
- enduringly
- for keeps
- long
- e'er
- for good and all
- perennially
- aye
Antonyms & Near Antonyms
- never
- once
- nevermore
- ne'er