precarious Antonyms

demonstrated very clearly risk-free low-risk foolproof confirmed nonrandom non-poisonous all right unquestionable undoubted sustainable sure-footed sure riskless as solid as a rock as steady as a rock demonstrated clearly clearly showed clearly proved clearly illustrated clearly evidenced clearly displayed amply shown little dangerous clearly shown clearly proven clearly demonstrated capable of being trusted sturdy strong easy dependable definitive definite defended decisive decided copper-bottomed conclusive certain benign assured FAST firm harmless steady stable settled secure safe