Definition of -less suffix from the Oxford Advanced Learner's Dictionary

     

    -less

     suffix
    suffix(in adjectives)
     
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  1. 1without treeless meaningless
  2. 2not doing; not affected by tireless selfless More Like This Suffixes -able, -age, -al, -ance, -ant, -arian, -ary, -dom, -ee, -er, -ese, -esque, -ess, -fold, -ful, -hood, -ify, -ion, -ish, -ism, -ist, -ista, -ite, -itis, -ize, -less, -let, -ling, -ly, -ment, -most, -ness, -oid, -or, -ous, -shipSee worksheet.
  3. Word Origin Old English -lēas, from lēas ‘devoid of’.
See the Oxford Advanced American Dictionary entry: -less