gyakusayō
1. reaction; adverse effect
Noun
#188300
1. reaction; adverse effect
1. reverse; opposite
2. converse (of a hypothesis, etc.)
3. inverse (function)
1. to go against; to oppose
1. inverted; upside down
1. farewell; adieu
1. reaction
1. side effect; adverse reaction
1. retrogression; reversal
1. opposite effect; adverse effect
1. handstand; headstand
2. being upside down; being in reverse