The definition for impenitent is "Lacking remorse." Used in a sentence: The impenitent criminal received a harsh penalty, but his remorseful accomplice was released. The definition for catastrophic is "relating to extreme misfortune.", the definition for placebo is "An inactive substance used in medical testing.", and the definition for garish is "Offensively bright."

The definition for immoderate is "Beyond usual or proper limits." Used in a sentence: Bob's immoderate appetite shocked the guests at the wedding banquet. The definition for gravity is "importance, significance.", the definition for aerate is "To supply with air.", and the definition for procrastinate is "To put off intentionally."

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 futile is "without purpose, completely ineffective.", the definition for melee is "A tumultuous fight among several people.", and the definition for exception is "A case to which the rule does not apply."

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 polarize is "to break up into opposing groups.", the definition for fragile is "Delicate.", and the definition for repentant is "Feeling regret."

The definition for celebrated is "Widely known, respected." Used in a sentence: The fans waited for hours to catch a glimpse of the celebrated actress. The definition for extenuating is "partially excusing.", the definition for abate is "Become less in amount or intensity.", and the definition for promote is "To contribute to the growth or prosperity of."