most obvious

accessible clear conspicuous discernible distinct evident glaring indisputable noticeable overt palpable pronounced recognizable self-evident straightforward undeniable unmistakable visible

barefaced bright clear as a bell conclusive distinguishable explicit exposed in evidence lucid manifest observable open patent perceivable perceptible plain precise prominent public self-explanatory standing out transparent unconcealed undisguised unsubtle

ambiguous concealed dark disputable doubtful dubious dull fuzzy hidden inconspicuous indefinite indistinct invisible mistakable obscure obscured questionable secret uncertain unclear unknown unnoticeable unsure vague