reign, rule, have sway; be customary, be in vogue.
obtrude, v. 1. impose upon, push oneself on [s.o.], push [s.t.] on [s.o.], thrust [s.t.] forward; thrust forth, push out, stick out.
2. intrude, walk in or into, burst in or into, Inf. barge in or into, break in or into, interrupt, SI. butt in, U.S. SI. horn in, force or push one's way in; pry, poke or stick one's nose into, nose into, meddle; interfere, get in the way, interfere, interpose, intercede.
obtrusive, adj. 1. prominent, conspicuous, obvious, unmistakable, evident, clear, apparent, patent; overt, open, manifest, undisguised, bald, bald-faced; sheer, utter, unqualified, outright, out-and-out, absolute, unmitigated; blatant, flagrant, extreme, gross, outrageous, egregious, notorious; bold, audacious, impudent, brazen, flaunting, shameless; arrant, downright, thorough, hard-core.
2. protruding, protuberant, protrusive, projecting, beetle, beetling, overhanging; jutting out, sticking out, hanging out or down, showing.
obtund, v. blunt, dull, take the edge off; moderate, modulate, soften, tone down, muffle, mute; deaden, numb, benumb, stupefy, anesthetize.
obtuse, adj. 1. blunt, rounded, smooth, unpointed, unedged.
2. phlegmatic, sluggish, slow, torpid; dormant, stagnant, inactive, inert, passive; hebetudinous, lethargic, languid, listless; torporific, droopy, spiritless, leaden, heavy, vapid.
3. insensitive, insentient, imperceptive, impercipient, insensible, undiscerning; unfeeling, cold, cool, withdrawn; thick-skinned, callous, uncaring, unsympathetic; passionless, heartless, unemotional; stolid, impassive, unmoved, numb, apathetic; unobservant, inattentive, unconscious, unaware, blind, unseeing; uninterested, heedless, indifferent, unresponsive.
4. stupid, insensate, witless, irrational, Inf. dumb, dull, dull-witted; unintelligent, thick, dense, thickheaded, fatheaded, blockheaded, SI. pinheaded, SI. birdbrained, SI. peabrained; vacuous, empty-headed, inane, brainless, foolish, Inf. dopey, not having the brains one was born with; slow-witted, dim-witted, backward, retarded, mentally retarded, simple-minded, simple; bovine, cloddish, doltish, boorish, oafish, lumpish, lubberly, loutish; ignorant, crass, Boeotian, gross; not having much upstairs, muttonheaded, SI. goony, SI. schmucky; out of it, out in left field, in the ozone, in orbit; moronic, boneheaded, dunderheaded, thick-skulled, wooden-headed.
obverse, n. principal surface, face, top, head, front, fagade; counterpart, complement, supplement.
obviate, v. preclude, forestall, prevent, hinder, avert, Archaic, forfend; intercept, obstruct; avoid, ward off, stave off, fend off, divert; rid, SI. ditch. obvious, adj. understandable, recognizable, discernible, palpable; clear, clear-cut, clear as crystal; plain, visible, distinct, patent, bald-faced, bald, as plain as the nose on one's face; open, overt, unconcealed; standing to reason, apparent, ostensible, evident, manifest; conspicuous, sticking out like a sore thumb, notable, pronounced, glaring, like a red flag, prominent; explicit, spelled-out.
occasion, n. 1. time, instance, case; juncture, point, place, spot, position, setting; circumstance, condition, situation; conjuncture, set of circumstances or affairs.
2. occurrence, incident, episode, experience, adventure, event; affair, function, happening, Archaic. hap; observance, commemoration, service; celebration, party, get-together; gala, show, big or major production, big or major deal or thing.