pre-carious (adjective) precarious: tricky, doubtful
Sinonime: bagnio, bawdy house, bordello, call house, cathouse, den of iniquity, house of assignation, house of ill repute, house with red doors, massage parlor, red-light district, whorehouse
Antonime: certain,
definite,
firm,
stable,
strong,
sure, undoubted