His rough, violent behavior became a problem.
He complained to the clerk with a rough attitude.
粗暴な運転は事故のもとだ。
Wild driving is a cause of accidents.
酒を飲むと粗暴になる人がいる。
There are people who become violent when they drink alcohol.
His rough, violent temperament dated back to his childhood.
凶暴 describes extreme, brutal ferocity (often of criminals or dangerous animals), while 粗暴 describes a milder, coarse roughness in a person's behavior.
荒い is a broad adjective for rough, intense, or violent, usable for natural forces or actions, while 粗暴 is specifically about human character and manner.
温和 describes a calm, gentle temperament, the opposite of the rough, aggressive temperament described by 粗暴.
粗野 describes uncouth, unrefined manners or speech without implying violence, whereas 粗暴 specifically implies aggressive or violent behavior.
Formed from 粗 (coarse, rough) and 暴 (violent, outburst). The combination conveys a rough and violent disposition.