unusable

As adjectives the difference between unusable and undefined

is that unusable is not usable while undefined is lacking a definition or value.

As adjectives the difference between unusable and valid

is that unusable is not usable while valid is valid.

As adjectives the difference between unfit and unusable

is that unfit is not fit; not having the correct requirements while unusable is not usable.

As a verb unfit

is to make unfit; to render unsuitable, spoil, disqualify.

As adjectives the difference between unused and unusable

is that unused is not used while unusable is not usable.

As adjectives the difference between useless and unusable

is that useless is without use or possibility to be used while unusable is not usable.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective unusable is

not usable.

Nonusable is a synonym of unusable.

As adjectives the difference between unusable and nonusable

is that unusable is not usable while nonusable is not usable.

As adjectives the difference between unusable and munted

is that unusable is not usable while munted is (british|slang) drunk.

As an adjective unusable

is not usable.

As an adverb unusably is

in an unusable manner.