Accumbencies is a rather uncommon word in English, and therefore it may be challenging to find direct synonyms that have the exact meaning as accumbencies. However, some possible synonyms for accumbencies are reclining, resting, lying down, leaning, or lounging. These words can be used to describe a comfortable position in which the body is supported in a horizontal way, usually on a surface such as a bed, sofa, or chair. Accumbencies can also be used to refer to rest or repose after a period of activity, as well as to indicate a state of relaxation or inactivity. Ultimately, the choice of synonyms for accumbencies will depend on the context and the intended meaning of the sentence.