SYN: Yielding, pressible, impressible, smooth, delicate, fine, sleek, glossy, mild, gentle, balmy, kind, feeling, flexible, effeminate, luxurious, unmanly, tender, irresolute, undecided.
ANT: Hard, tough, stubborn, unyielding, rigid, unimpressible, rough, coarse, harsh, abrupt, ungentle, rigorous, cutting, severe, unkind, unfeeling, sharp, inflexible, stern, austere, ascetic, self-denying, resolute, determined.
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KEY: Soften.
SYN: Mollify, palliate, compose, mitigate, assuage, dulcify, lenity, yield, macerate, humanize, abate, moderate.
ANT: Harden, indurate, aggravate, excite, infuriate, consolidate.
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KEY: Soil.
SYN: Stain, tarnish, begrime, befoul, contaminate.
ANT: Purify, bleach, cleanse, absterge.