unused

As adjectives the difference between unused and null

is that unused is not used while null is having no validity, "null and void.

As a noun null is

a non-existent or empty value or set of values.

As a verb null is

to nullify; to annul.

As adjectives the difference between unused and untapped

is that unused is not used while untapped is not tapped.

As adjectives the difference between unused and unacquainted

is that unused is not used while unacquainted is not acquainted.

As adjectives the difference between unused and new

is that unused is not used while new is recently made, or created.

As an adverb new is

newly (especially in composition).

As a noun new is

things that are new.

As a verb new is

to make new; to renew.

As adjectives the difference between redundant and unused

is that redundant is superfluous; exceeding what is necessary while unused is not used.

As adjectives the difference between unworn and unused

is that unworn is not worn while unused is not used.

Unused is a related term of vigorous.

As adjectives the difference between unused and vigorous

is that unused is not used while vigorous is physically strong and active.

As adjectives the difference between unnecessary and unused

is that unnecessary is not needed or necessary while unused is not used.

As adjectives the difference between fresh and unused

is that fresh is newly produced or obtained or fresh can be rude, cheeky, or inappropriate; presumptuous; disrespectful; forward while unused is not used.

As a noun fresh

is a rush of water, along a river or onto the land; a flood.

As adjectives the difference between unimpaired and unused

is that unimpaired is not impaired while unused is not used.