I. adverb
1.
in a different way or manner
he could not act otherwise
Synonyms: differently, diversely, ||othergates, variously
Antonyms: likewise
2.
under different conditions
might otherwise have left
Synonyms: else, ||elseways, elsewise, ||otherways
II. adjective
Synonyms: different 1, disparate, dissimilar, distant, divergent, diverse, other, unalike, unequal, unlike