Definition of lesser adjective from the Oxford Advanced Learner's Dictionary

     

    lesser

     adjective
    adjective
    BrE BrE//ˈlesə(r)//
     
    ; NAmE NAmE//ˈlesər//
     
    [only before noun]
     
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  1. 1not as great in size, amount or importance as something/somebody else people of lesser importance They were all involved to a greater or lesser degree (= some were more involved than others). The law was designed to protect wives, and, to a lesser extent, children. He was encouraged to plead guilty to the lesser offence. (humorous) He doesn’t even acknowledge us lesser mortals(= people who are not as important or powerful). A lesser woman would have given up.
  2. 2used in the names of some types of animals, birds and plants which are smaller than similar kinds a lesser black-backed gull
  3. opposite great
    Word Origin Middle English: a double comparative, from less + -er.Idioms
    the lesser of two evils, the lesser evil
     
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    the less unpleasant of two unpleasant choices