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 revive is "to bring back to life.", the definition for pretentious is "Making unjustified claims.", and the definition for meticulous is "Extrememly careful regarding details."

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 melee is "a tumultuous fight among several people.", the definition for antidote is "Something that relieves or counteracts.", and the definition for hedonism is "Belief that pleasure is the sole aim of life."

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 dubious is "questionable.", the definition for flourish is "To make bold, sweeping gestures.", and the definition for plaudits is "Enthusiastic approval."

The definition for placebo is "An inactive substance used in medical testing." Used in a sentence: Tom, who had taken the placebo, found that his allergy symptoms did not go away. The definition for incisive is "impressively direct and decisive.", the definition for pantomime is "Telling a story through gestures.", and the definition for ploy is "A contrived plan."

The definition for intricate is "Having complex and interrelated parts." Used in a sentence: The intricate poem baffled most readers with its numerous obscure metaphors. The definition for meticulous is "extrememly careful regarding details.", the definition for futile is "Without purpose, completely ineffective.", and the definition for sociable is "Inclined to seek companionship."