from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Without song.
from the GNU version of the Collaborative International Dictionary of English
- adj. Destitute of the power of song; without song.
from The Century Dictionary and Cyclopedia
- Without song; not singing.
- In ornithology:
- Not singing; unable to sing; not a singer: as, the female mocking-bird is songless; most birds are songless in winter.
- Having no singing-apparatus, and consequently unable to sing; not a song-bird; non-oscine; clamatorial or mesomyodian, as a passerine bird: as, the Mesomyodi, or songless Passeres.
song + -less (Wiktionary)