otherwise

Otherwise is defined as in other circumstances, other ways or other respects, or can mean "or else."

(adverb)

If a person is normally nice but is rude only on one particular occasion, this is an example of when you might say he is otherwise very nice except for that occasion.
If a dog has all brown fur but one white paw, this is an example of when you might say that he is an otherwise brown dog.
If you are known as Joe but also known as Joseph, this is an example of when you might introduce yourself as Joe, otherwise known as Joseph.
If the only reason you do not eat nuts is because you are allergic, this is an example of when you might say that you are allergic, otherwise you'd eat them.

See otherwise in Webster's New World College Dictionary

adverb

in another manner; differently: to believe otherwise
in all other points or respects: an otherwise intelligent person
in other circumstances
if not: used as a conjunctive adverb: do it right; otherwise, you'll have to do it over

Origin: ME othre wise < OE on othre wisan: see wise

adjective

in another condition; different: the answer could not be otherwise

See otherwise in American Heritage Dictionary 4

adverb