noun
considering; deliberating; thinking about it
Used when someone is in the process of thinking something over, often implying a decision has not yet been made. Common in phrases like 考え中です (I'm still thinking about it).
その提案についてはまだ考え中です。
I'm still considering that proposal.
彼は何か考え中のようで、ずっと黙っている。
He seems to be thinking about something, and has been silent for a while.