1. Not supervised or under constant observation
   "the school maintains unsupervised study halls during free periods"; "reliable workers are generally unsupervised"

See also: unattended

Antonym: supervised

• around
• around the bend
• around-the-clock
• arousal
• arouse
• aroused
• arouser
• Arp
• arpeggio
• arpent
• arquebus
• arrack
• arraign
• arraignment
• arrange
• arranged
• arrangement
• arranger
• arranging
• arrant
• arras
• array
• arrayed
• arrear
• arrearage