Entry 2 senses · 2 variants Webster, 1913 Attemperate · At·tem·per·ate · IPA /əˈtɛm.pə.ɹət/ a. v. t. 01 a. Tempered; proportioned; properly adapted. 1. Tempered; proportioned; properly adapted. “Hope must be . . . attemperate to the promise.” — Hammond. 02 v. t. To attemper. 1. To attemper.[Archaic]