anestrous

adjectives

of or relating to anestrus
pertains to
(of lower mammals) not in a state of estrus; not in heat
"an anestrous bitch"
antonym
is similar to
(of animals that have several estrous cycles in one breeding season) in a period of sexual inactivity
domain category
any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk