Ant. Snatch, grasp, hold, keep, retain, arrest, catch.
Flippant. Fluent, voluble, glib, talkative, nimble of speech; impertinent, pert, malapert, forward, bold; superficial, saucy, thoughtless.
Ant. Servile, considerate, obsequious, flattering, deferential; accurate; complimentary, respectful.
Float. Waft, swim, be buoyed up; bear up, buoy up; spread, prevail.
Ant. Sink, drown, die, vanish, founder.
Flock, n. Brood, bevy, herd, lot, group, pack, swarm, set, hatch, drove, covey, litter; collection, company, congregation.
Flock, v. Herd, congregate, assemble, throng, crowd, troop.
Ant. Disperse, scatter, separate, segregate, distribute, rout.
Flood, n. Deluge, abundance, inundation, overflow, freshet; downrush, multitude.
Ant. Drought, drain, ebb, scarcity, subsidence.