Allconsuming means something that completely takes over or dominates a person's thoughts and attention. The opposite of allconsuming would be something that is insignificant or unimportant, not occupying a significant place in a person's mind. A few words that could be considered antonyms for allconsuming are trivial, insignificant, unremarkable, and negligible. These words suggest that something is not dominant or overwhelming and does not demand attention or reflection. They imply that it is easy to disregard these things or forget about them because they are of little significance. In contrast to allconsuming, these words imply detachment, neutrality, and a lack of emotional attachment.