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unfathomable

un·fath·om·a·ble

unfathomable

 
pronunciation:
uhn fae th m bl
part of speech: adjective
definition 1: not able to be imagined or comprehended.
The amount of destruction caused by the hurricane was unfathomable.Higher mathematics was unfathomable to him.
antonyms:
comprehensible, fathomable
similar words:
deep, impenetrable, incomprehensible, inexplicable
definition 2: immeasurable.
unfathomable differences between the two cultures
antonyms:
measurable