Thready \Thread"y\, a.

1. Like thread or filaments; slender; as, the thready roots of a shrub. [1913 Webster]

2. Containing, or consisting of, thread. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

thready adj
1: forming viscous or glutinous threads [syn: ropy, ropey, stringy]
2: thin in diameter; resembling a thread [syn: filamentous, filiform, filamentlike, threadlike] [also: threadiest, threadier]

Source: WordNet (r) 2.0
 

Thready \Thread"y\, a.

1. Like thread or filaments; slender; as, the thready roots of a shrub.

2. Containing, or consisting of, thread.

Source: Webster's Revised Unabridged Dictionary (1913)