The term "more redblooded" often denotes qualities such as vitality, courage, and energy. However, its antonyms might include timid, weak, or lethargic. These contrasting terms suggest a lack of vigor or zeal, as opposed to the passionate and robust nature that the phrase "more redblooded" connotes. Other possible antonyms might include apathetic, spineless, or faint-hearted, which similarly convey a sense of feebleness and lack of drive. Ultimately, the antonyms for "more redblooded" imply a deficiency of spirit or fortitude, a marked contrast to the fierce and vivacious qualities associated with the original term.