expression, godan verb (-ru)
fall into error; make a mistake
A somewhat formal or literary expression meaning to commit an error or lapse in judgment. Often used in discussions of logic, morality, or serious missteps.
慎重に検討しないと、誤りに陥る恐れがある。
If we don't examine it carefully, we risk falling into error.
彼は
He was careful not to fall into the same mistake.