Obstruct. Bar, barricade, hinder, oppose, impede, stay, stop, arrest, check, embarrass, clog, choke, retard, interrupt.
Ant. Aid, facilitate, accelerate, forward, promote, clear, advance, open, pave the way for, further, free, expedite.
Obstruction. Obstacle, barrier, bar, impediment, check, clog, hindrance.
Ant. Course, proceeding, advancement, progress, career.
Obtain. Attain, gain, procure, acquire, earn, win.
Ant. Lose, forfeit, surrender, forego.
Obtrude. Intrude, force, interfere, thrust.
Ant. Suggest, hint, insinuate; retire, withdraw.
Obtuse. Blunt, dull, stupid, unintelligent, stolid.
Ant. Keen, quick, sharp, intelligent, acute, clever.