wispy

adjectives

thin and weak
"a wispy little fellow with small hands and feet"- Edmund Wilson
wisplike, wispy
is derived from
wisp
lacking clarity or distinctness
"a dim figure in the distance"; "only a faint recollection"; "shadowy figures in the gloom"; "saw a vague outline of a building through the fog"; "a few wispy memories of childhood"
dim, faint, shadowy, vague, wispy