nonessential
1. [ adjective ] not of prime or central importance
Synonyms: incidental
Examples:

"nonessential to the integral meanings of poetry"- Pubs.MLA

Related terms: inessential
2. [ noun ] anything that is not essential
Synonyms: inessential
Examples:

"they discarded all their inessentials"

Related terms: necessity entity thing adjunct
Similar spelling:   nonsensical
  nonsensicality