Lexiphanic terms are words or phrases that are unnecessarily complex and difficult to understand, often used to impress or confuse others. Synonyms for this phrase could include ostentatious language, pompous speech, bombastic jargon, verbose vocabulary, inflated expressions, flowery terminology, overblown diction, grandiose language, arcane terminology, and highfalutin verbiage. These terms are often used to obscure the meaning of the speaker or writer, making their communication less effective. Alternately, using simpler language can help to communicate more clearly and effectively, ensuring that the message is received and understood by the intended audience.