There are several synonyms for the term "more infrared," which is a type of radiation that falls outside the visible spectrum. Some of the common synonyms for this term include "increased infrared," "greater infrared," "enhanced infrared," "higher infrared," and "elevated infrared." These terms are often used to describe the level of infrared radiation emitted by various sources, including the sun, artificial light sources, and infrared heaters. By using these synonyms, individuals can convey the intensity or level of infrared radiation present in a given environment or device more precisely and accurately.