SUPI'NE, adjective [Latin supinus.] Lying on the back, or with the face upward; opposed to prone. 1. Leaning backward; or inclining with exposure to the sun. If the vine On rising ground be plac'd on hills supine-- 2. Negligent; heedless; indolent; thoughtless; inattentive. He became pusillanimous and supine and openly exposed to any temptation. These men suffer by their supine credulity. SU'PINE, noun [Latin supinum.] In grammar, a word formed from a verb, or a modification of a verb.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI