muscleless,a.|ˈmʌs(ə)llɪs| [f. muscle n. + -less.] Destitute of muscle. 1841R. Oastler Fleet Papers I. 289 The head is sick.., the limbs are muscleless.1867Lond.Rev. 23 Mar. 337/1 Speculations..as boneless and as muscleless as the dummies in a tailor's window.