LI'FELESS, adjective 1. Dead; deprived of life; as a lifeless body. 2. Destitute of life; unanimated; as lifeless matter. 3. Destitute of power, force, vigor or spirit; dull; heavy; inactive. 4. Void of spirit; vapid; as liquor. 5. Torpid. 6. Wanting physical energy.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI