Meaning of “je ne sais quoi” in the English Dictionary

british dictionary

"je ne sais quoi" in British English

See all translations

je ne sais quoinoun [ S ]

uk /ˌʒə nə seɪ ˈkwɑː/ us /ˌʒə nə seɪ ˈkwɑː/

French for 'I don't know what': a pleasing quality that cannot be exactly named or described:

Although he's not conventionally attractive, he has a certain je ne sais quoi that makes him popular with the ladies.

(Definition of “je ne sais quoi” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)