Causes may be a variable expressivity, an incomplete penetrance or germline mosaicism. They are autosomal-dominant diseases with complete penetrance and variable expressivity. The allele has variable expressivity, but complete penetrance. Other ancestors might be undiagnosed due to the incomplete penetrance or variable expressivity. It is associated with variable expressivity; incomplete penetrance has not been definitively documented. This explains why, despite its high penetrance, TSC has wide expressivity. The reductive philosophies of minimalism, spontaneous improvisation, and expressivity of Abstract expressionism characterized the works. Completeness, consistency, decidability, and expressivity, are further fundamental concepts in logic. Psychomotor specialists study the body and its expressivity. Social expressivity includes liveliness in voice, smiling, etc. "Bromance" has also been seen as a reflection of greater "discursive expressivity". Other global constraints extend the expressivity of the constraint framework. This means that the genetic expressivity is incomplete. BPMN are two notations with similar expressivity when process modeling is concerned. Conversely, high SES individuals occupy high power positions that call for greater expressivity.