Definition of -less in US English:

-less

suffix

  • 1(from nouns) not having; without; free from.

    ‘skinless’
    ‘flavorless’
  • 2(from verbs) not affected by or not carrying out the action of the verb.

    ‘fathomless’
    ‘tireless’

Origin

Old English -lēas, from lēas ‘devoid of’.

Pronunciation

-less

/ləs//ləs/