a. reclining; lying down completely or in part
The command "AT EASE" does not permit you to take a recumbent position.
Sentence in Classic:
For the most part, his task of reading was performed in a recumbent position in the anteroom; which circumstance ended by causing his mattress to become as ragged and as thin as a wafer.
Dead Souls By Nikolai Vasilievich Gogol Context
So saying, he stooped over the bed of the recumbent swineherd, and whispered something in his ear in Saxon.
He moved a few steps in that direction, and now he perceived a recumbent figure almost close to his feet.
Return of the Native By Thomas Hardy Context