Definition of “not half” - English Dictionary


“not half” in English

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not half

UK informal

used in spoken English to express a positive statement more strongly:

It wasn't half crowded in the club last night (= it was very crowded).
She didn't half shout at him (= she shouted a lot at him).
"You enjoyed yourself last night, didn't you?" "Not half !" (= Very much!)

(Definition of “not half” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)