あら
arai

i-Adjective

1. rough; wild; violent; rude; coarse; harsh; fierce; heavy (e.g. breathing)

ぼくのボスは人使 ひとずかいが あらいんだ。
bokuno bosuwa hitozukaiga arai nda.
My boss is a slave driver.
i-Adjective

2. immoderate; extravagant; reckless