Final answer:
The opposite of effective self-summarizing in communication is ineffective communication, characterized by excessive summarizing, inappropriate language use, poor transitions, and unclear information sequence.
Step-by-step explanation:
The opposite or unproductive communication of self-summarizing by both parties could be referred to as ineffective communication. This term encompasses various communication pitfalls, such as too much summarizing rather than analyzing, the use of too much informal language or an accidental mix of casual and formal tones, too few, too many, or inappropriate transitions between ideas, and an illogical or unclear sequence of information. To improve communication, it's essential to balance summarization with analysis, use appropriate language for the context, strategically utilize transitions to enhance clarity, and logically organize information.