From the Exam book, Cambridge English FIRST 1 (2014), Test 2, paper 1: Reading and Use of English. The aim is to modify the word in caps so that it fits in the gap on the same line.
[…] For years, it was assumed that simple muscle power determined human speed, but recent research suggests otherwise. The most important (19) ....... factor appears to be how LIMIT quickly the muscles can contract and thus (20)..... the time a runner's foot is in MINIMUM contact with the ground.
My private student wrote limitative for No.19, but the answers at the back of the book say the correct answer is limiting. Although I agree that “limiting” sounds better, I believe that my student's answer “limitative” is also grammatically correct. The book offers no explanation and no other possible alternative.
- limiting: functioning as a limit
- limitative: limiting, restrictive
- Is limitative grammatically incorrect for answer (19)? I can't figure out why Cambridge doesn't also accept limitative, could someone explain?