SUPINE

[adjective], [adverb] [not gradable] [formal] - (lying) flat on your back, looking upWe walked along the beach, past the rows of supine bodies soaking up the sun.When he injured his back, he had to lie supine for several weeks.Compare prone (LYING DOWN).(figurative disapproving) If you are supine, you are weak and willingly accept the control of others.The new director has introduced a series of changes against little opposition from the supine staff.