[{"Bold_text": "adjective", "List Items": ["full of or characterized by vigor :a vigorous effort.Antonyms: weak", "strong ; active ; robust :a vigorous youngster.Synonyms: healthy , sound , sturdy Antonyms: weak", "energetic ; forceful : a vigorous personality.vigorous steps;a vigorous personality.Synonyms: powerful Antonyms: weak", "powerful in action or effect:vigorous law enforcement.Antonyms: weak", "growing well, as a plant.Antonyms: weak"]}]