The antonyms for the word "pronounced sentence" would be a mumbled utterance, a garbled phrase, or an indecipherable statement. These phrases imply a lack of clarity or a failure to articulate words properly. A pronounced sentence, on the other hand, suggests a clear and unambiguous expression of a thought or idea. Other antonyms for a pronounced sentence might include a vague statement, an ambiguous pronouncement, or an unclear declaration. In everyday life, pronouncing sentences requires practice, confidence, and clarity of speech, and using antonyms illustrates how challenging it could be when one fails to meet these standards.