Definition of non- in English:

non-

prefix

  • 1Expressing negation or absence.

    ‘nonaggression’
    ‘nonrecognition’
    1. 1.1 Not of the kind or class described.
      ‘nonbeliever’
      ‘nonconformist’
    2. 1.2 Not of the importance implied.
      ‘nonissue’
  • 2(added to adverbs) not in the way described.

    ‘nonuniformly’
  • 3(added to verbs to form adjectives) not causing or requiring.

    ‘nonskid’
    ‘noniron’
  • 4Expressing a neutral negative sense when a corresponding form beginning with in- or un- has a special connotation (such as nonhuman compared with inhuman).

Usage

The prefixes non- and un- both have the meaning ‘not,’ but tend to be used with a difference of emphasis. See un-

Origin

From Latin non ‘not’.

Pronunciation

non-

/nɑn//nän/