The crossword solution for the term 'LESS ACUTE' is 'OBTUSER'. This word means 'not sharp or intense; not keen or severe'. It is often used to describe a person's mental state, such as being less alert or less aware of their surroundings. It can also be used to describe physical sensations, such as pain that is not as intense as it once was. In general, the term 'OBTUSE' implies a lack of intensity or sharpness.