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

All hell breaks loose at the table and, not so coincidentally, everyone looks to Porsha to diffuse things. — Ile-Ife Okantah, Vulture, 29 June 2026

Rigby accepted and a few months later, flew to Orlando for his first day on the job, which was coincidentally at the IAAPA Orlando trade show in 2013. — Caroline Reid, Forbes.com, 26 June 2026

Perhaps coincidentally, OpenAI is considering delaying its IPO, The New York Times reported, with executives unnerved by SpaceX’s volatile debut and stock-market choppiness. — Tom Chivers, semafor.com, 26 June 2026

He was thrust into the side against Uruguay in the 2024 Copa America — after a similar public campaign, coincidentally — and had a poor game. — Jack Lang, New York Times, 25 June 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