Answer: thready

AnswerCrossword Clue
THREADYLacking in fullness.
THREADYFilamentous
THREADYLacking fullness, as a voice
THREADYLacking fullness, as the voice
THREADYBarely detectable, as a pulse
threadyOf, relating to, or resembling a thread
thready(of a person's pulse) Scarcely perceptible
threadyresembling a thread
thready(of a sound, esp. the voice) Scarcely audible