苦手なの

not good at

→ 苦手だ
phrase Uncommon #8,155
not good at Used to explain that someone is not good at something or feels uncomfortable with it. The sentence-ending の adds an explanatory tone and is often casual, especially in speech.
JA: 私は人前で話すのが苦手なの。
EN: I'm not good at speaking in front of people.

マダムのこと苦手なの

Do you have trouble with madams?

— ブレードランナー 2049 (2017)

話せるけど苦手なの

I can speak it, but I'm not very good at it.

— ANORA アノーラ (2024)

車の縦列駐車って苦手なの

I'm really bad at parallel parking.

耐えるのは苦手なの

I'm not good at putting up with things.

— サイコ (1960)