adjective the reason was blindingly obvious | it's obvious that Bob's keen on her | his obvious disgust CLEAR , plain, plain to see, crystal clear, evident, apparent, manifest, patent, conspicuous, pronounced, transparent, clear-cut, palpable, prominent, eye-catching, head-turning, marked, decided, salient, striking, distinct, bold, noticeable, perceptible, perceivable, visible, discernible, detectable, observable, tangible, recognizable, notable, unmistakable, indisputable, self-evident, incontrovertible, incontestable, self-explanatory, axiomatic, demonstrable, undeniable, as plain as a pikestaff, staring someone in the face, writ large, beyond doubt, beyond question, written all over one, as clear as day, blinding, inescapable, overt, open, undisguised, unconcealed, frank, broad, glaring, blatant, flagrant, barefaced, gross, bald, pointed; informal as plain as the nose on one's face, standing/sticking out like a sore thumb, standing/sticking out a mile, right under one's nose. -opposite(s): IMPERCEPTIBLE, INCONSPICUOUS, OBSCURE.