SYN: Sorrow, repentance, affliction, penitence, compunction, remorse, self-reproach.
ANT: Impenitence, callousness, obduracy, reprobation, relentlessness.
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KEY: Attune.
SYN: Temper, attemper, harmonize, adjust, accommodate.
ANT: Unstring, disharmonize, disarrange, discompose, dislocate, disturb, disconcert.
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KEY: Audacious.
SYN: Insolent, adventurous, venturesome, presumptuous, valiant, rash, bold, daring, reckless, enterprising.
ANT: Timid, cowardly, cautious, inadventurous, unventuresome, unenterprising.