The phrase "got off the subject" can be replaced with various antonyms to convey the opposite meaning. Some of the antonyms for "got off the subject" are "stayed on topic", "kept to the point", "remained focused", "stuck to the subject", "adhered to the matter", "stayed on track", "maintained relevance", and "not deviated from the theme". These antonyms signify the act of retaining continuity and coherence in a conversation, presentation, or writing. By using these antonyms, one can convey a message of effective communication and staying on course. Thus, it is crucial to remain mindful of the antonyms of "got off the subject" to ensure smooth communication.