Synonyms of coincidental

coincidental

adjective

(ˌ)kō-ˌin(t)-sə-ˈden-tᵊl 

1

as in coincident

existing or occurring at the same period of time

the nearly coincidental deaths of Princess Diana and Mother Teresa

Synonyms & Similar Words

• coincident
• concurrent
• synchronous
• synchronic
• simultaneous
• contemporaneous
• contemporary
• coeval
• incident
• coterminous
• coextensive
• accompanying
• coetaneous
• concomitant
• coexistent
• coexisting
• attending
• attendant

Antonyms & Near Antonyms

• asynchronous
• nonsynchronous
• nonsimultaneous
• noncontemporary

2

as in attending

present at the same time and place

claims a connection between the proliferation of fast-food restaurants and the coincidental surge in the rate of obesity

Synonyms & Similar Words

• attending
• accompanying
• attendant
• associated
• coincident
• concurrent
• concomitant
• subsequent
• related
• simultaneous
• contemporaneous
• resultant
• coexistent
• resulting
• synchronous
• linked
• contemporary
• consequent
• coexisting
• ensuing
• following
• connected
• fortuitous
• incident
• accidental
• collateral
• incidental
• chance
• freak
• fluky
• casual

Antonyms & Near Antonyms

• unrelated
• unconnected
• unassociated

Example Sentences

Recent Examples of coincidental

Perhaps not coincidental to its history, Trastevere has long been Rome’s bohemian neighborhood. — Matthew Wills, JSTOR Daily, 17 Aug. 2026

Death penalty observers say that double or triple executions are purely coincidental timing. — Amanda Lee Myers, USA Today, 13 Aug. 2026

Ultimately, GLP-1s are turning out to be metabolic and inflammatory drugs that happen to cause weight loss, rather than weight loss drugs with a long list of coincidental improvements. — Jesse M. Pines, Forbes.com, 10 Aug. 2026

Part of this is coincidental; cultural norms and infant survival rates changed dramatically over the course of the twentieth century. — Literary Hub, 10 Aug. 2026