Being conspicuous refers to being noticeable, easily visible or standing out from the crowd. On the other hand, antonyms of being conspicuous can refer to being concealed, hidden, or blending in with the surroundings. Some possible antonyms of being conspicuous include subtle, invisible, unobtrusive, inconspicuous, camouflaged, unnoticed, or unremarkable. These words can be used to describe situations or people who are not easily noticeable or stand out from the crowd. In certain contexts, being inconspicuous can be advantageous, such as in situations where one wants to avoid being noticed or draw attention to themselves.