Synonyms of ad hoc

ad hoc

adjective

as in impromptu

made or done without previous thought or preparation

upon learning that it was her birthday, we had an ad hoc celebration right there in the restaurant

Synonyms & Similar Words

• impromptu
• improvised
• improvisational
• unprepared
• down and dirty
• spur-of-the-moment
• extemporaneous
• unauthorized
• extemporary
• informal
• offhand
• unstudied
• unplanned
• unrehearsed
• extempore
• unconsidered
• snap
• spontaneous
• automatic
• unpremeditated
• off-the-cuff
• offhanded
• ad-lib
• impulsive
• unscripted
• instinctive
• involuntary
• casual
• cursive
• ill-advised
• half-baked
• half-cocked

Antonyms & Near Antonyms

• prepared
• planned
• considered
• rehearsed
• premeditated
• premeditative
• intentional
• intended
• deliberate

Example Sentences

Recent Examples of ad hoc

Pillay currently serves as an ad hoc judge at the International Court of Justice, the highest court of the United Nations, in the ongoing genocide case against Myanmar. — Stefanie Dazio, Los Angeles Times, 9 Oct. 2026

Their Multinational Military Mission, an ad hoc coalition to clear mines and secure the Strait of Hormuz, is competing for European naval resources. — Anna Mulrine Grobe, Christian Science Monitor, 6 Oct. 2026

Under the charter approved Tuesday, an ad hoc committee will oversee the superintendent selection and hiring process as an advisory panel to the full board. — Nora O'Neill, Charlotte Observer, 29 Sep. 2026

The annual report draft was assembled by an ad hoc committee formed earlier this year to help the commission get its materials completed and submitted in advance of the budget cycle. — Madison Smalstig, Sacbee.com, 28 Sep. 2026

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