The phrase "abounding in tautology" can be replaced with a variety of synonyms that carry similar meanings. One possible option is "repetitive," which highlights the tendency to repeat the same phrases or ideas unnecessarily. Another synonym is "verbose," implying the tendency to use more words than necessary to convey a message. Similarly, "cliched" suggests the use of overused or predictable expressions, while "redundant" emphasizes the unnecessary or superfluous nature of the language. "Prolix" is another option, emphasizing the long-winded and tedious nature of the speech or writing. Overall, these synonyms highlight the lack of concision and originality inherent in language that is abounding in tautology.