wispy

Adjective
  1. Thin and weak (synset 300995028)
    "a wispy little fellow with small hands and feet"
  2. Lacking clarity or distinctness (synset 300785775)
    "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"

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