Being suffused means being filled with an intense feeling, emotion or color. The antonyms for this word would mean the opposite, to be lacking or empty of something. Some possible antonyms for suffused are 'drained', 'vacant', 'empty', 'depleted' and 'bare'. These words convey a feeling of emptiness, a lack of emotion, and a lessening of intensity that is the opposite of being suffused. Being drained of feeling or emotion can be described as the opposite of being suffused. While being empty or vacant implies a lack of substance or meaning, being depleted or bare are more physical antonyms that imply an absence of something that was once there.