Ant. Document, instrument, writing.

Clean, a. Pure, neat, clear, spotless, cleansed, untarnished, upright.

Ant. Foul, impure, untidy, hampered, unclean.

Cleanse. Purify, wash, clean, disinfect, lave, scour, sponge, scrub, sweep, wipe, rinse, dust, purge.

Ant. Defile, pollute, stain, deprave, sully, taint, befoul, contaminate, corrupt, vitiate.

Clear, a. Pure, bright, transparent, free, serene, unclouded, obvious, manifest, pellucid, unadorned, plain, distinct, evident, lucid, intelligible, explicit, straightforward, perspicuous.

Ant. Mysterious, unintelligible, vague, opaque, foggy, dim, cloudy, dubious, turbid, ambiguous.

Clever. Gifted, expert, capable, apt, bright, ingenious, quick-witted, skilful, adroit, dexterous, intellectual, happy, smart, talented, keen, knowing, intelligent, quick, sharp.

Ant. Foolish, slow, stupid, idiotic, thickheaded, witless, bungling, awkward, dull, ignorant, clumsy, senseless.

Climax. Acme, top, summit, culmination, height, consummation, zenith, head.