i-adjective
Describes physical pain or soreness. Can be used for injuries, illness, or emotional hurt in a metaphorical sense.
転んで膝が痛い。
I fell and my knee hurts.
昨日の注射の跡がまだ痛い
The spot from yesterday's injection is still sore.
i-adjective
cringy; embarrassing; painful to watch
Colloquial use describing someone's behavior or situation as so awkward or embarrassing that it's 'painful' to witness. Often used about try-hard or out-of-touch actions.
あの人のダンス、痛くて見ていられない。
That person's dancing is so cringy I can't watch.
若者言葉を使おうとする上司が痛い。
My boss trying to use youth slang is embarrassing.