American English

Definition of coarsen verb from the Oxford Advanced American Dictionary

     

    coarsen

     verb
    verb
    NAmE//ˈkɔrsn//
     
    Verb Forms present simple I / you / we / they coarsen
     
    he / she / it coarsens
     
    past simple coarsened
     
    -ing form coarsening
     
     
    jump to other results
  1. 1[intransitive, transitive] to become or make something become thicker and/or rougher Her hair gradually coarsened as she grew older. coarsen something His features had been coarsened by the weather.
  2. 2to become or make someone become less polite and often offensive in the way they behave [transitive, intransitive] coarsen (somebody) The six long years in prison had coarsened him.
See the Oxford Advanced Learner's Dictionary entry: coarsen