poor at; weak in; not good at
Describes a lack of skill or ability in a subject, task, or activity. Often used with ~が苦手.
I'm not good at math.
He is poor at speaking in public.
not one's cup of tea; not one's favorite; dislike
Expresses personal dislike or aversion, not necessarily lack of ability. Often used for foods, people, or situations one finds unpleasant.
Natto is not my cup of tea.
She dislikes insects.
I'm not good at math.
I can't handle spicy food.
I'm bad at speaking in front of people.
I have a hard time dealing with my strict boss.
I practiced every day to overcome my weak point.
苦手 names something a person is bad at or dislikes doing, the opposite of a 十八番, which is their standout strength.