supineness noun2 •The state of being supine.She almost taunted Fleda with supineness in not getting something out of somebody—in the same breath indeed in which she drenched her with a kind of appreciation more onerous to the girl than blame. — 1897 •Total submissiveness; flat on one's back, lacking any backbone; with total abandon; prostrate; supineI can safely appeal to the magistrates for the truth of these statements; knowing how deeply they lament that sinful supineness, which has occasioned such an increase of depravity. (p. 32) — 1812 formssupinenesses