Commensurateness is a term that refers to equality or proportionality in size, amount, or degree. Its antonyms are opposites that denote inequality or disproportion. Some antonyms for commensurateness are inadequacy, insufficiency, disproportion, imbalance, inequality, irregularity, and unevenness. Inadequacy implies a lack of sufficiency or fitness for a particular purpose, while insufficiency denotes a deficiency or inadequacy in amount or degree. Disproportion suggests a lack of balance or symmetry, while imbalance implies lack of equilibrium or stability. Lastly, inequality refers to the state of not being equal in size or value, while irregularity and unevenness suggest a lack of uniformity or regularity.