Ant. Design, purpose, asynchronism, anachronism, difference.
Cold. Frigid, chilly, frosty, icy, polar, wintry; dull, lifeless, unimpassioned, sluggish, apathetic, indifferent, spiritless.
Ant. Hot, warm, ardent, impassioned, fiery, burning, fervid, vehement, passionate.
Colleague. Associate, coadjutor, collaborator, helper, companion, partner, assistant, ally, confederate.
Ant. Opponent, rival, antagonist, competitor.
Collect. Gather, glean, amass, garner, muster, congregate, assemble, convoke, accumulate.
Ant. Distribute, dispense, divide, assort, deal.
Collision. Clash, shock, impact, concussion, encounter, contact, opposition, conflict.
Ant. Divergence; concord, harmony, agreement, coincidence, concert, unity, amity, unison.
Colloquy. Dialogue, conversation, talk, discourse, consultation, conference.