Antonyms for "more originative" would include words that suggest the opposite, such as uncreative, uninventive, unoriginal, and unimaginative. These words indicate a lack of originality and creative thinking, implying that the subject in question is relying on pre-existing ideas and concepts rather than coming up with new ones. Alternatively, words like conservative, traditional, orthodox, and established could also be seen as antonyms for "more originative," as they suggest a preference for established ways of thinking and doing things, rather than embracing innovation and creativity. Overall, these antonyms suggest a contrast between creativity and conformity, novelty and tradition, and originality and imitation.