The definition for incumbent is "Necessary as a duty or responsibility." Used in a sentence: It was incumbent on Jack to attend his father's retirement party. The definition for nurture is "to further the development of.", the definition for stifle is "To repress or discourage.", and the definition for regale is "To amuse."

The definition for incongruous is "Not harmonious, incompatible." Used in a sentence: Sadie's cowboy hat was incongruous with her black cocktail dress. The definition for pomp is "showy display.", the definition for ecstatic is "Overwhelmingly emotional.", and the definition for combustion is "Act of burning."

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 obnoxious is "highly offensive.", the definition for insinuate is "To suggest indirectly.", and the definition for prune is "To reduce by removing excess."

The definition for turmoil is "Extreme confusion, agitation." Used in a sentence: The windstorm caused such turmoil in the lake that the sailboat capsized. The definition for extol is "to praise highly.", the definition for grandiose is "With an affectation of grandeur.", and the definition for servile is "Fearfully submissive."

The definition for disdain is "Feeling of contempt." Used in a sentence: The arrogant writer did not hide his disdain for his uneducated dinner companion. The definition for supple is "flexible.", the definition for revoke is "To cancel by taking back.", and the definition for iridescent is "Having a lustrous or attractivve quality."