shadowy
shad-ow-y
adjective
Mysterious, obscure, or not clearly defined, often implying a lack of transparency.
"The organisation was involved in shadowy dealings."
adjective
Full of shadows, dark, and indistinct, often suggesting mystery or concealment.
"A shadowy figure emerged from the alleyway."
Thesaurus
Synonyms: umbrageous, shaded, shadowed, shady, wraithlike, unreal, unsubstantial, insubstantial, faint, wispy, vague, dim