Without frets; free from worry or anxiety; or (of a musical instrument like a bass) having no metal ridges across the fingerboard.
From 'fret' plus '-less' (suffix meaning without or lacking). The musical sense refers to instruments without the metal fret bars, while the emotional sense means free from the original sense of 'fret' (worry).
A fretless bass requires incredible skill because the player can't rely on frets to guide finger placement—it's actually harder to play than a fretted bass, showing how those little metal lines are more helpful than you'd think!
Complete word intelligence in one call. Free tier — 50 lookups/day.