De meritorious is not an actual word, but if it were, possible antonyms could include: worthy, deserving, commendable, praiseworthy, meritorious, excellent, admirable, and laudable. These words all convey positive attributes and accomplishments. On the other hand, antonyms for de meritorious would be negative qualities such as unworthy, undeserving, reprehensible, objectionable, faulty, disgraceful, and contemptible. These terms would describe actions or behaviors that are not deserving of praise or recognition. While de meritorious may not be a common word, it is important to consider both its positive and negative connotations when understanding its meaning.