Dictionary 1. (a.) Full of, attended with, or involving, peril; dangerous; hazardous; as, a perilous undertaking.2. (a.) Daring; reckless; dangerous. Thesaurus alarming bad chancy critical dangerous dangersome delicate desultory explosive fraught with danger hairy hazardous infirm insecure insubstantial jeopardous menacing parlous periculous precarious provisional risky serious shaky shifting shifty slippery susceptible temporary tentative threatening ticklish tottery touchy treacherous ugly uncertain undependable unfaithworthy unhealthy unreliable unsafe unsolid unsound unstable unsteadfast unsteady unsubstantial unsure untrustworthy vulnerable wicked |