adjective
- not proportionate; out of proportion, as in size or number.
adjective (ˌdɪsprəˈpɔːʃənɪt)
- out of proportion; unequal
verb (ˌdɪsprəˈpɔːʃəˌneɪt)
- chem to undergo or cause to undergo disproportionation
1550s, from dis- “not” + proportionate. Improportionate in same sense is from late 14c. Related: Disproportionately.