たま きず
tamani kizu

Noun
Idiomatic Expression

1. fly in the ointment; small flaw in otherwise perfect object; only trouble; only fault

八丁 はっちょう くち八丁 はっちょう かれだけど、誠 まことがないのが たま きずだね。
te hacchō kuchihacchōno karedakedo makotoga nai noga tamani kizudane.
He works fast and is very articulate but his insincerity is his biggest defect.
Other forms: