unfretted

/ʌnˈfrɛtɪd/
adjective
  1. Not worried, anxious, or distressed; calm and relaxed.
    • His unfretted attitude helped the team stay focused during the crisis.
    • She remained unfretted despite the looming deadline.
    • The cat sat unfretted by the loud noises outside.
  2. Of a stringed musical instrument: having no frets (the raised strips on the neck).
    • He prefers unfretted string instruments for their smoother glissando.
    • The luthier specialized in building unfretted lutes.
    • The cello is an unfretted instrument, requiring precise finger placement.