obvious, perceptible - easily perceived by the senses or grasped by the mind; "a perceptible sense of expectation in the court"; "an obvious (or palpable) lie" Antonym:impalpable (indirect, via palpable)
conspicuous, obvious - obvious to the eye or mind; "a tower conspicuous at a great distance"; "wore conspicuous neckties"; "made herself conspicuous by her exhibitionistic preening"
obvious, visible - obvious to the eye; "a visible change of expression" Antonym:covert (indirect, via overt)