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 negate is "to make invalid.", the definition for turmoil is "Extreme confusion, agitation.", and the definition for manifest is "Obvious."

The definition for prominence is "Importance." Used in a sentence: The singer's prominence ensured that the concert would sell out. The definition for periodic is "occurring at regular intervals.", the definition for retroactive is "effective as of a prior time or condition.", and the definition for perception is "Capacity for seeing or understanding."

The definition for melee is "A tumultuous fight among several people." Used in a sentence: After the game, a melee broke out between fans of the opposing teams. The definition for frugal is "thrifty, cheap.", the definition for eloquent is "Fluent, expressive.", and the definition for commemorate is "To mark by a ceremony."

The definition for unscrupulous is "Lacking principles." Used in a sentence: The unscrupulous salesman was fired for lying to his customers. The definition for mundane is "practical, ordinary.", the definition for indecorous is "In bad taste.", and the definition for avian is "Relating to birds."

The definition for sociable is "Inclined to seek companionship." Used in a sentence: The sociable Glenda was delighted to receive the party invitation. The definition for aesthete is "person having or affecting sensitivity to beauty.", the definition for lurid is "Causing horror, shocking.", and the definition for stealth is "The act of moving secretly or unnoticed."