Antonyms of adj thready

2 senses of thready

Sense 1
ropy, ropey, stringy, thready -- (forming viscous or glutinous threads)

INDIRECT (VIA thick) -> thin -- (relatively thin in consistency or low in density; not viscous; "air is thin at high altitudes"; "a thin soup"; "skimmed milk is much thinner than whole milk"; "thin oil")

Sense 2
filamentous, filiform, filamentlike, threadlike, thready -- (thin in diameter; resembling a thread)

INDIRECT (VIA thin) -> thick -- (not thin; of a specific thickness or of relatively great extent from one surface to the opposite usually in the smallest of the three solid dimensions; "an inch thick"; "a thick board"; "a thick sandwich"; "spread a thick layer of butter"; "thick coating of dust"; "thick warm blankets")

Similarity of adj thready

2 senses of thready

Sense 1
ropy, ropey, stringy, thready -- (forming viscous or glutinous threads)
       => thick (vs. thin) -- (relatively dense in consistency; "thick cream"; "thick soup"; "thick smoke"; "thick fog")

Sense 2
filamentous, filiform, filamentlike, threadlike, thready -- (thin in diameter; resembling a thread)
       => thin (vs. thick) -- (of relatively small extent from one surface to the opposite or in cross section; "thin wire"; "a thin chiffon blouse"; "a thin book"; "a thin layer of paint")