The definition for retroactive is "effective as of a prior time or condition." Used in a sentence: The retroactive law made even past infractions punishable. The definition for insinuate is "to suggest indirectly.", the definition for trove is "Valuable collection.", and the definition for cunning is "Showing clever insight."

The definition for finite is "Having definite limits." Used in a sentence: The exasperated mother had finite patience for her toddler's tantrums. The definition for interminable is "never ending, or seemingly endless.", the definition for oblivious is "Lacking awareness.", and the definition for authoritarian is "Favoring absolute obedience to authority."

The definition for epistolary is "Contained or carried on in letters." Used in a sentence: The shoebox filled with letters was the ony remains of Ming's epistolary friendship with Emile. The definition for rancorous is "marked by deep ill–will.", the definition for procrastinate is "To put off intentionally.", and the definition for mandate is "An official order or commission to do something."

The definition for supple is "Flexible." Used in a sentence: The supple leather coat draped like soft cloth around her shoulders. The definition for hedonism is "belief that pleasure is the sole aim of life.", the definition for impenitent is "Lacking remorse.", and the definition for proximity is "Closeness."

The definition for aerate is "To supply with air." Used in a sentence: Every spring, Soloman used his tiller to aerate the compact soil. The definition for inviolable is "secure from assault of trespass.", the definition for extant is "Currently existing.", and the definition for straddle is "To favor opposing sides."