coincidentally

adverb

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

-ˈden-tə-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

• coincidently
• concurrently
• contemporaneously
• simultaneously
• together

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

Hynes reacted by playing Jon Merrill in Game 5, and coincidentally, the third-pair tandem with Zach Bogosian, which was such a liability during the regular season, had its paw prints all over Brett Howden’s overtime goal. —Michael Russo, New York Times, 2 May 2025

The Musical, and even did early workshops for the musical adaptation of Death Becomes Her (which coincidentally opened this season too, days after Sunset). —Dave Quinn, People.com, 1 May 2025

The 27 Club refers to a collective of prominent musicians who coincidentally died at the age of 27, including Amy Winehouse, Jimi Hendrix, the Rolling Stones’ Brian Jones, Kurt Cobain, Jim Morrison, Janis Joplin, and the K-pop star Jonghyun of Shinee. —Jae-Ha Kim, Rolling Stone, 1 May 2025

The Handmaid’s Tale debuted on April 26, 2017, the 97th day of Donald Trump’s first presidential term and, coincidentally, First Lady Melania Trump’s 47th birthday. —Jen Chaney, Vulture, 7 Apr. 2025

Word History

Etymology

coincidental + -ly entry 2

First Known Use

1837, in the meaning defined at sense 1

Rhymes for coincidentally

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