Void of essence, or real being.
More than enough; overabundant; excess; superfluous
Not needed; unnecessary; irrelevant
Open to objection
The definition of exorbitant is something that is excessive or goes beyond reasonable.
Not strictly necessary; dispensable:
(Rare) Without essence or existence; immaterial
Supplemental or added to something.
The definition of surplus is something that is in excess of what you need.
Not pertinent; irrelevant
The definition of futile is something that won't succeed or is unimportant.
The definition of haphazard is something disorganized or without any particular order to it.
(Obs.) Undisciplined; unmanageable
Subject to dispensation, as a vow or church law.
Having little or no importance; not essential.
Left to one's option, or choice; not compulsory; elective
Capable of being vacated; liable to be annulled or made invalid; voidable.
The definition of random is an action that happens without order or without reason.
Being more than is usual, required, or permitted:
Used to fill out a sentence, line, etc.
The definition of lavish is very generous or abundant.
The definition of chance is accidental or not expected or planned.
Lacking worth; of no use or value.
The definition of indispensable is essential or absolutely necessary.
The definition of casual is someone or something relaxed, occasional, not planned or informal.
The definition of essential is completely necessary or part of the basic nature of something.
To act in advance of; get ahead of; anticipate
The definition of fortuitous is happening by chance.
Find another word for unnecessary. In this page you can discover 67 synonyms, antonyms, idiomatic expressions, and related words for unnecessary, like: needless, unessential, uncalled-for, unwarranted, irrelevant, redundant, superfluous, objectionable, exorbitant, expendable and gratuitous.