The term "under-sense" refers to something that is subliminal, hidden, or implied. Synonyms for this word include "subconscious," "implicit," "latent," "suggested," "veiled," and "tacit." All of these words convey the idea that something is being expressed in a way that is not immediately obvious, but can still be detected or felt by those who are attuned to it. Whether it's a hidden meaning in a piece of art, an unspoken tension between two people, or a subtle message in a piece of writing, the under-sense is a powerful force that can shape our experiences and perceptions of the world around us.