Dictionary / Vocabulary / 難点
なんてん
fault; weakness; flaw; defect
common word
ただし押し込む瞬間気圧の変化のせいでしょうか、耳がツンとするのが難点です。
However, maybe from the sudden change in pressure when you push them in, having your ears pop is a problem.
彼の援助で私の父は難点を切り抜けた。
His support carried my father through.
ビニールは熱に弱いのが難点だ。
The weakness of vinyl is that it is easily affected by heat.