na-adjective, noun
Refers to a person or thing that gets in the way, slows progress, or is a burden. Often used in the phrase 足手まといになる (to become a hindrance).
小さい子供を連れて行くと足手まといになるかもしれない。
Taking small children along might be a hindrance.
彼はチームの足手まといだと言われて悔しかった。
He was frustrated when they said he was a drag on the team.