sighless,a.rare.|ˈsaɪlɪs| [f. sigh n. + -less.] Giving or sending forth no sigh. c1835Mrs. Browning Felicia Hemans i, O'er the sighless songless lips, the wail and music wedding.1838― SeraphimEpil. iii, So soon to lie Sighless, because then breathless, in the tomb.