coarsen

verb

/ˈkɔːsn/

/ˈkɔːrsn/

Verb Forms

present simple I / you / we / they coarsen	/ˈkɔːsn/ /ˈkɔːrsn/
he / she / it coarsens	/ˈkɔːsnz/ /ˈkɔːrsnz/
past simple coarsened	/ˈkɔːsnd/ /ˈkɔːrsnd/
past participle coarsened	/ˈkɔːsnd/ /ˈkɔːrsnd/
-ing form coarsening	/ˈkɔːsnɪŋ/ /ˈkɔːrsnɪŋ/

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[intransitive, transitive] to become or make something become thicker and/or rougher（使）变厚，变粗糙
- Her hair gradually coarsened as she grew older.随着年龄的增长，她的头发逐渐变粗糙了。
- coarsen something His features had been coarsened by the weather.气候使他的容貌变得粗糙。
[transitive, intransitive] coarsen (somebody) to become or make somebody become less polite and often offensive in the way they behave（使）变得粗鲁无礼
- The six long years in prison had coarsened him.六年漫长的监狱生活使他变得粗鲁无礼。

BNC: 39417 COCA: 39724

coarsen

To become larger: grow, expand, swell...