Cessation. Stop, pause, abeyance, suspension, lull, respite.
Ant. Incessancy, continuity, continuance.
Chafe. Vex, irritate, gall, rub, chagrin, tease, worry, harass, annoy, fret; rage, fume; nettle, exasperate, anger.
Ant. Soothe, coax, calm, console, humor; submit, endure, succumb.
Chaff. Banter, badinage, nonsense, frivolity; refuse, trash.
Ant. Sense, reason, pith, gist, seriousness, substance.
Chagrin. Humiliation, shame, mortification, confusion, discomposure, dismay, disappointment.
Ant. Delight, glory, exultation, triumph, rejoicing.
Challenge, v. Dare, brave, defy; demand, require, claim; object to, take exceptions.
Ant. Pass, allow, grant, concede, permit; retract, retreat.