a.

1. 怠忽職守的
2. 到期未付的，拖欠的
   He is delinquent in paying his rent.

   他拖欠房租。

3. 有過失的；犯法的

n.

1. 青少年罪犯；違法者；有過失者[C]
   a juvenile delinquent

   少年犯

adj.

1. (typically of young people) tending to commit crime.
2. formal failing in one's duty.
3. N. Amer. in arrears:
   delinquent accounts.

n.