- 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[transitive, intransitive] coarsen (somebody) to become or make somebody become less polite and often offensive in the way they behave The six long years in prison had coarsened him.
BrE BrE//ˈkɔːsn//; NAmE NAmE//ˈkɔːrsn//Verb Forms present simple I / you / we / they coarsen
BrE BrE//ˈkɔːsn//; NAmE NAmE//ˈkɔːrsn//he / she / it coarsens
BrE BrE//ˈkɔːsnz//; NAmE NAmE//ˈkɔːrsnz//past simple coarsened
BrE BrE//ˈkɔːsnd//; NAmE NAmE//ˈkɔːrsnd//past participle coarsened
BrE BrE//ˈkɔːsnd//; NAmE NAmE//ˈkɔːrsnd//-ing form coarsening
BrE BrE//ˈkɔːsnɪŋ//; NAmE NAmE//ˈkɔːrsnɪŋ//