adj. 25B6; adjective
his origins and parentage remain obscure : UNCLEAR, uncertain, unknown, in doubt, doubtful, dubious, mysterious, hazy, vague, indeterminate, concealed, hidden.
obscure references to Proust : MYSTIFYING, puzzling, perplexing, baffling, ambiguous, cryptic, enigmatic, Delphic, oracular, oblique, opaque, elliptical, unintelligible, incomprehensible, impenetrable, unfathomable; abstruse, recondite, arcane, esoteric; informal as clear as mud.
an obscure Peruvian painter : LITTLE KNOWN, unknown, unheard of, undistinguished, unimportant, nameless, minor; unsung, unrecognized, forgotten.
an obscure shape : INDISTINCT, faint, vague, nebulous, ill-defined, unclear, blurred, blurry, misty, hazy.
clear, plain, famous, distinct.
25B6; verb
grey clouds obscured the sun : HIDE, conceal, cover, veil, shroud, screen, mask, cloak, cast a shadow over, shadow, block, obliterate, eclipse, darken.
recent events have obscured the issue : CONFUSE, complicate, obfuscate, cloud, blur, muddy; muddy the waters; poetic/literary befog.
reveal, clarify.