ぼうっと

Etymology
Generally considered to be a compound of onomatopoeia + adverbial particle. Extension of shorter version, emphasizing an extended ongoing state of mental or visual fuzziness, vagueness, or indistinctness.

Adverb

 * 1) unclearly, indistinctly, vaguely.
 * 2) the sound of a fire burning strongly
 * : blushingly.

Antonyms

 * : clear, distinct