だらしない
だらしない · darashinai · JLPT N2 · i-adj
slovenly
🧦 だらす (to let hang loose) + ない (not): slovenly, lacking tension and discipline
だらす means to let something sag or hang loosely, so だらしない describes posture, dress, or conduct that lacks tension. It echoes だらり, the sound and motion of something limp and dangling.