nonessential

• non-essential

From non- +‎ essential.

• Audio (US):

  (file)

nonessential (not comparable)

1. Not required; not essential.
   • 2008, BioWare, Mass Effect (Science Fiction), Redwood City: Electronic Arts, →ISBN, →OCLC, PC, scene: Mission Computer:

     Codex entries provide additional but nonessential information about topics of interest in Mass Effect.

• essential
• required
• necessary
• mandatory

nonessential (plural nonessentials)

1. Something that is not essential.