[verb oh-ver-pruh-pawr-shuh n, -pohr-; noun oh-ver-pruh-pawr-shuh n, -pohr-]
  1. the excessiveness of something in relation to another or to what is considered correct, desirable, or normal; inequity or imbalance: the overproportion of insurance to income.

Origin of overproportion

First recorded in 1635–45; over- + proportion
Related formso·ver·pro·por·tion·ate, adjectiveo·ver·pro·por·tion·ate·ly, adverbo·ver·pro·por·tioned, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018