viparyaya

viparyaya-matiḥ one who has developed perverse intelligence; SB 4.14.29
viparyaya-īhā the unnecessary activities; SB 7.11.8-12
viparyaya backwards; SB 10.40.25
viparyaya which are just the opposite; SB 10.63.42
viparyaya-graham the misidentification; SB 10.77.32