・ 音 フ,ブ
Sino-Vietnamese: bất
Han Viet bat means not, as in bat an 不安 (anxiety) and bat cong (unjust). Put 不 in front of a word to negate it.
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
明日の試験が不安です。 (あしたのしけんがふあんです)
I am anxious about tomorrow's exam.