Rough, wild, violent, coarse, or harsh; can describe manners, actions, or heavy/rapid breathing.
彼は性格が荒く、人前で怒鳴ることが多い。
He has a rough temperament and often shouts in front of others.
その機械は動きが荒く、細かい作業には向かない。
That machine moves roughly and is not suitable for delicate work.
運転が荒いので助手席に座るのが怖い。
The driving is rough, so sitting in the passenger seat is scary.
息が荒くなるほど走った。
I ran until my breathing became heavy.
Immoderate, extravagant, or reckless — indicating excessiveness or lack of restraint (e.g., spending or behavior).
彼は金遣いが荒く、すぐ給料を使い切ってしまう。
He spends money recklessly and quickly uses up his salary.
荒い判断でプロジェクトが失敗した。
The project failed due to reckless/judgmental decisions.