Which sentence contains an adjective with a negative connotation. Would it be the X 300 model uses new technology the X 300 model uses innovative technology or the X 300 model uses cutting edge technology or the X 300 model uses unproven technology

Answer 1

The sentence that contains an adjective with a negative connotation is "the X 300 model uses unproven technology." The term "unproven" suggests a lack of reliability or trustworthiness, which carries a negative implication.