coincidentally

adverb

co·​in·​ci·​den·​tal·​ly (ˌ)kō-ˌin(t)-sə-ˈden-tə-lē 

-ˈdent-lē

1

: in a coincidental manner : by coincidence

… lonely singles who meet coincidentally and click …

—People

2

: it is or seems coincidental that

coincidentally, the dog died exactly one year after his owner did

Synonyms of coincidentally

• coincidently
• concurrently
• simultaneously

Examples of coincidentally in a Sentence

the final stages of the Napoleonic Wars were fought coincidentally with the U.S.-British conflict known as the War of 1812

Recent Examples on the Web

Instead, kind of coincidentally, the unions ended up, SEIU Local 1021, ended up being the one that put together the parcel tax language and funded the petition gathering process. —John Ramos, CBS News, 31 May 2026

And for me, ‘Amor Eterno,’ coincidentally also patterns how most requiems start, which is requiem eternum, eternal rest, eternal love. —Rod Stafford Hagwood, Sun Sentinel, 29 May 2026

Students studying the natural sciences and training for the health care professions, which not so coincidentally have been the fastest growing employment fields recently. —Lisa Chambers, Forbes.com, 28 May 2026

Shelly Brown is, coincidentally, also a jewelry designer. —Assistant Editor, Los Angeles Times, 27 May 2026

Word History

Etymology

coincidental + -ly entry 2

First Known Use

1837, in the meaning defined at sense 1

Rhymes for coincidentally

• accidentally
• detrimentally
• fundamentally
• governmentally
• incidentally
• incrementally
• instrumentally
• sentimentally
• temperamentally
• environmentally
• experimentally
• mentally