The phrase "under sense" can have multiple meanings, depending on the context it is used in. If it pertains to the sense of touch or feeling, synonyms could include "sensory," "tactile," or "perceptible." In terms of common sense or rationality, synonyms may include "logical," "reasonable," or "sensible." If it refers to being under the influence of a substance or emotion, synonyms could include "drunk," "intoxicated," or "overwhelmed." Regardless of the context, there are always alternative words that can be used to convey the same or similar meaning as "under sense".