Synonyms of unsafe

1 Syllable
mad
2 Syllables
parlous, harmful, touchy, unfirm, chancy, riskier, madder, shaky, dodgy, maddest, wobbly, risky, ticklish, touchier, rootless, unsound, loury, touchiest
3 Syllables
erratic, hazardous, alarming, unstable, jeopardous, treacherous, lowery, unshielded, fearsome, vincible, unbacked, ramshackle, impendent, dangerous, slippery, burnable, pregnable, tumble-down, precarious, threatened, threatening, uncertain, perilous
4 Syllables
untrustworthy, unprotected, dangersome, unreliable, explosive, vulnerable, minatory, inflammable, impugnable, unsheltered, ignitable, insecure
5 Syllables
comminatory, undependable