❌ Don’t say this: I’m accustomed with hot weather (familiar with something and accepting it as normal).
✅ Say this: I’m accustomed to hot weather.
Why “with” is wrong and “to” is correct
The word accustomed means “familiar with something and accepting it as normal.” In English, you are accustomed to a situation, habit, or condition — never accustomed with. Think of to as pointing toward something you have learned to accept (used to, adapted to, reconciled to). The preposition with is wrong here because with means together or accompanied by (with a friend, with difficulty, with pleasure), not the target of your familiarity. A helpful note: used to also takes to — not used with (He is used to the heat).
