は苦手だ

be bad at; be uncomfortable with

→ は
phrase Common #7,871
be bad at; be uncomfortable with Used to say that someone is not good at something or does not handle it well. It can also express dislike or discomfort, especially with things like alcohol, heat, or the military. The topic marked by は comes before 苦手だ.
JA: 私は物理は苦手だ。
EN: I'm not good at physics.

蝙蝠は苦手だ

I'm not a fan of bats.

都会は苦手だ

I’m not a fan of winters in the city.

軍隊は苦手だ

I'm not comfortable with the military.

— 大人は判ってくれない (1959)

長距離は苦手だ

I’m not good at long-distance running.

— ロード・オブ・ザ・リング/二つの塔 (2002)

即興やるのは苦手だ

I'm not good at improvising.

は苦手だ

I'm not good with cats.

— オープン・ユア・アイズ (1997)

私は数学は苦手だ

I'm not good at math.

彼は聞き上手だが話すのは苦手だ

He's a good listener, but he's not good at expressing himself.

ニンニクは苦手だ

I don't like garlic.

ドイツ語は苦手だ

I'm not good at German.

あいつは苦手だ

I can't stand that guy.

私は物理は苦手だ

I'm not good at physics.

魚釣りは苦手だ

I'm not very good at fishing.