Entry 2 senses Webster, 1913 Oscitant · Os·ci·tant · IPA /ˈɒsɪtənt/ 01 a. Yawning; gaping. 1. Yawning; gaping. 2. Sleepy; drowsy; dull; sluggish; careless. “He must not be oscitant, but intent on his charge.” — Barrow.