The definition for interminable is "Never ending, or seemingly endless." Used in a sentence: The impatient Zoe found the longwinded lecture interminable. The definition for demeanor is "behavior towards others.", the definition for derelict is "Abandoned.", and the definition for penurious is "Extrememly stingy."

The definition for cunning is "Showing clever insight." Used in a sentence: The general devised a cunning strategy to outfox the enemy. The definition for euphoria is "feeling of great happiness.", the definition for gruff is "Rough or stern in manner or speech.", and the definition for adversary is "One who opposes or resists."

The definition for repentant is "Feeling regret." Used in a sentence: The repentant Dana admitted to cheating on the test. The definition for serenity is "calmness.", the definition for ecstatic is "Overwhelmingly emotional.", and the definition for gruff is "Rough or stern in manner or speech."

The definition for periodic is "Occurring at regular intervals." Used in a sentence: The periodic innterruptions of the cuckoo clock prevented Li from concentrating. The definition for mandate is "an official order or commission to do something.", the definition for incumbent is "Necessary as a duty or responsibility.", and the definition for garish is "Offensively bright."

The definition for mandate is "An official order or commission to do something." Used in a sentence: Martha reluctantly obeyed the mandate to vacate her apartment. The definition for epistolary is "contained or carried on in letters.", the definition for melodious is "Having a pleasing melody.", and the definition for precept is "A general rule of action."