Level 6 · word 15,663 of 20,000 gruff /ˈɡrʌf/ American adj. 粗声粗气的, 粗鲁的 Definitionadj. rough or unfriendly in voice or mannerExampleThe old man had a gruff voice but a kind heart.这位老人嗓音粗哑,心地却很善良。