not half

Adverb

Britain not-comparable slang

(Britain, slang) Greatly; to a considerable extent.

Japanese Meaning

非常に / 大いに / 相当に

She was not half pleased to win the award, smiling from ear to ear.

彼女はその賞を受賞してとても喜び、満面の笑みを浮かべていた。

Sense（1）

(Britain, slang) Greatly; to a considerable extent.

"So you fancy that girl then?" "Not half!"