Dictionary

Below are the words that matched your query...

Undesirable

not wanted; "undesirable impurities in steel"; "legislation excluding undesirable aliens";"removed the unwanted vegetation"
not worthy of being chosen (especially as a spouse)
one whose presence is undesirable; "rounding up vagrants and drunks and other undesirables"

Unwanted

not wanted; "undesirable impurities in steel"; "legislation excluding undesirable aliens";"removed the unwanted vegetation"
not wanted; not needed; "tried to give away unwanted kittens"

Unenviable

so undesirable as to be incapable of arousing envy; "unenviable notoriety"
hard to deal with; especially causing pain or embarrassment; "awkward (or embarrassing or difficult) moments in the discussion"; "an awkward pause followed his remark"; "a sticky question"; "in the unenviable position of resorting to an act he had planned to save for the climax of the campaign"

Undestroyable

not capable of being destroyed
very long lasting; "less durable rocks were gradually worn away to form valleys"; "the perdurable granite of the ancient Appalachian spine of the continent"

Undeterminable

Unascertainable

Undiscoverable

Undetermined

not precisely determined or established; not fixed or known in advance; "of indeterminate age"; "a zillion is a large indeterminate number"; "an indeterminate point of law"; "the influence of environment is indeterminate"; "an indeterminate future"
not yet having been ascertained or determined; "of undetermined species"
not brought to a conclusion; subject to further thought; "an open question"; "our position on this bill is still undecided"; "our lawsuit is still undetermined"

Undeveloped

not developed; "courses in interior design were rare and undeveloped"; "undeveloped social awareness"
undeveloped or unused; "vast unexploited (or undeveloped) natural resources"; "taxes on undeveloped lots are low"

Undifferentiated