Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “curious”


adjective (STRANGE)    /ˈkjʊə.ri.əs/ US  /ˈkjʊr.i-/
strange and unusual: There was a curious-looking man standing outside. A curious thing happened to me yesterday. It's curious (that) Billy hasn't phoned when he promised he would. → Synonym peculiarStrange, suspicious and unnatural curiously     /-li/ adverb B2 Curiously (= strangely), there didn't seem to be a bank in the town.Strange, suspicious and unnaturalCuriosityQuestioning people and asking questions in generalSuspecting and questioning
(Definition of curious adjective (STRANGE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of curious

Definitions of “curious” in other dictionaries

Word of the Day


a person or group who receives money, advantages, etc. as a result of something else

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More