Translation of "nadif" into English

Iġbor il-kampjun f’kontenitur xieraq nadif, niexef, mgħammar b’tapp li jissiġilla.

Collect the sample in a suitable clean, dry container, fitted with an air-tight stopper.

Ma tistax tifhem x’għandhom x’jaqsmu li tkun nadif u organizzat maʼ li tqassam il-ħin tiegħek aħjar.

You’re not sure how being neat and organized has anything to do with managing your time better.