The phrase "overdelicacy of speech" refers to an excessive and unnecessary use of polite or formal language in conversation. Some synonyms for this term are loquacity, verbosity, verbosity, circumlocution, and prolixity. Loquacity implies a tendency to talk excessively and at length, often without consideration for the listener. Verbosity and prolixity refer to an overly wordy speech that is long-winded and tedious. Circumlocution means to speak evasively or indirectly and often implies a reluctance to address the main point. These synonyms are useful for describing individuals who may be overly decorous in their communication style, causing their words to be insincere or fake.