Not able to be counted or numbered; innumerable or countless.
From Latin ab- (away from) + numerabilis (able to be counted, from numerare 'to count'). This is an archaic or rare variant of 'innumerable' using the Latin prefix ab- rather than in-.
This word is so rare that most modern dictionaries don't include it, but mathematicians and philosophers would love it—it's the technical term for things that defy counting, like infinity or abstract concepts.
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