Definition of not half
1 : not nearly He's not half the fool you think he is. an aging baseball player who is not half the hitter he once was
2 British, informal —used to emphasize a statement or descriptionShe doesn't half swear! So vulgar I hate to listen to her.It's not half cold today so bundle up!
Love words? Need even more definitions?Merriam-Webster unabridged
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