Dormant

adjective
in a condition of biological rest or suspended animation
“dormant buds”
Similar: hibernating, torpid
adjective
(of e.g. volcanos) not erupting and not extinct
“a dormant volcano”
Similar: inactive
adjective
inactive but capable of becoming active
“her feelings of affection are dormant but easily awakened”
Similar: abeyant
adjective
lying with head on paws as if sleeping
Similar: sleeping