adjective

(of an animal) having normal physical functions suspended or slowed down for a period of time; in or as if in a deep sleep.

dormant butterflies

asleep,sleeping,slumbering,resting,reposing,drowsing,comatose,supine,inactive,passive,inert,latent,fallow,quiescent,inoperative,stagnant,sluggish,lethargic,torpid,motionless,immobile,aestivating