<p><strong>Adjective:</strong></p><ul><li>utterly unconcerned about the consequences of some action; without caution; careless (usually followed by of): to be reckless of danger</li><li>characterized by or proceeding from such carelessness: reckless extravagance</li></ul><p><strong>Synonyms:</strong></p><ul><li>imprudent</li><li>negligent</li><li>incautious</li><li>heedless</li><li>rash</li></ul><p><strong>Antonyms:</strong></p><ul><li>careful</li></ul>