noun
future trouble; subsequent problems; consequences
Refers to negative consequences or trouble that may arise later as a result of a current action or decision. Often used in warnings or cautious statements.
今のうちにきちんと処理しないと、後難を招く恐れがある。
If we don't deal with it properly now, it could lead to future trouble.
彼は後難を恐れて、その件について何も言わなかった。
Fearing the consequences, he said nothing about the matter.