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 description She doesn't half swear! So vulgar I hate to listen to her. It's not half cold today so bundle up!
Word by Word Definitions
: either of two equal parts that compose something
: a part approximately equal to one of these
: one of a pair: such as
: being one of two equal parts
: that is approximately equal to either of two equal parts that compose something : amounting to approximately half
: falling short of the full or complete thing : partial
: in an equal part or degree
: not completely : partially
: by any means : at all
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