Definition of proportionative in English:

proportionative

adjective

US
rare
  • Proportionate.

Origin

1940s; earliest use found in The Reno Evening Gazette. From proportionate + -ive.

Pronunciation

proportionative

/prəˈpɔːʃənətɪv//prəˈpɔːʃ(ə)nətɪv/