What's the adjective for unstably? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs unstabilize and unstable which may be used as adjectives within certain contexts.
“Only 2 pets can be in a stable at any given time while a third is unstabled and summonable at the hunter's command.”
“When the last tune of music floated from the fleet, he unstabled his quarter horse and headed for the coastal road leading west and north on his circuit.”