1. Unpardonable is to forgive as impregnable is to breach. (Impregnable means "unbreakable" and Breach means "act of breaking something")

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  2. Audacious is to trepidation as loquacious is to apathy. (Audacious means "showing bravery", trepidation means "fearfulness", loquacious means "talkative" and apathy means "lack of interest").  

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