What are the opposite words for essential?

Antonyms for the word "essential" refer to concepts or items that are optional, unnecessary, or supplementary. The word "inessential" is a direct antonym and refers to something that is not crucial, important or indispensable. Other antonyms of "essential" include "noncritical," "peripheral," "inessential," "trivial," "extraneous," and "inessential." These words refer to components or details that are less important, less vital, and less vital to the success of a particular thing. The opposite of essential can also be expressed as "non-essential," which implies that the subject is not required, necessary, or critical for a particular task or process.

Antonym of the day

split down the middle
combine, join.