The word "commensuratenesses" refers to the quality of being proportional or corresponding in size, amount, or degree. Some of the antonyms for this word include disproportionality, inequality, inadequacy, insufficiency, and disparity. These words indicate the absence of balance or harmony, implying that something is off-balance or out of sync. For instance, disproportionality implies a lack of fairness or balance in the allocation or distribution of something. Similarly, inequality refers to the unequal distribution of resources or opportunities, while inadequacy implies a shortfall in quantity or quality. Lastly, insufficiency and disparity indicate a shortage or discrepancy, suggesting that some things are lacking or unevenly distributed.