Formal:
* ฉันเบื่อ (chan bue) - This is the most direct and formal way to say it. It literally translates to "I am bored."
* ฉันรู้สึกเบื่อ (chan ruu-seuk bue) - This is a slightly more formal way to say it, as it literally translates to "I feel bored."
Informal:
* เบื่อจัง (bue jang) - This is a more casual way to say it. It literally translates to "Bored, really."
* เบื่อว่ะ (bue wa) - This is a very casual and informal way to say it. It is similar to saying "I'm so bored, man." This is not appropriate to use with elders or people you are not close with.
Other ways to express boredom:
* ไม่มีอะไรทำ (mai mee arai tham) - This literally translates to "There is nothing to do."
* เหงา (ngao) - This means "lonely," but can also be used to express boredom.
The best way to say "I am bored" in Thai depends on the situation and the person you are talking to. Remember to choose the appropriate level of formality!