early 14c., "feeling no love;" late 14c. "unloved, not attracting love," from love (n.) + -less. Attested from mid-13c. as a surname. Related: Lovelessly; lovelessness.
a loveless marriage
a loveless childhood
love-child
loved
love-hate
love-knot
Lovelace
loveless
love-letter
lovelily
loveliness
love-longing
love-lorn