THESAURUS
peril
breakers ahead, cardhouse, cause for alarm, compromise, crisis, danger, dangerous ground, desultoriness, emergency, encounter danger, endanger, endangerment, expose, exposure, gamble, gamble with, gaping chasm, gathering clouds, hazard, house of cards, imperil, imperilment, incur danger, infirmity, insecurity, insolidity, instability, insubstantiality, jeopard, jeopardize, jeopardy, lay open, liability, menace, openness, pass, perilousness, pinch, plight, precariousness, predicament, put in danger, put in jeopardy, quicksand, risk, riskiness, rocks ahead, shakiness, shiftiness, shiftingness, slipperiness, speculativeness, storm clouds, strait, subjection, susceptibility, thin ice, threat, ticklishness, treacherousness, treachery, unauthenticity, unauthoritativeness, uncertainty, undependability, unfaithworthiness, unreliability, unsolidity, unsoundness, unsteadfastness, unsteadiness, unsubstantiality, unsureness, untrustworthiness, vulnerability
ROGET THESAURUS
peril
Danger
N
danger,
peril, insecurity, jeopardy, risk, hazard, venture, precariousness, slipperiness, instability, defenselessness, exposure, vulnerability, vulnerable point, heel of Achilles, forlorn hope, leap in the dark, road to ruin, faciles descensus Averni, hairbreadth escape, cause for alarm, source of danger, rock ahead, breakers ahead, storm brewing, clouds in the horizon, clouds gathering, warning, alarm, apprehension, in danger, endangered, fraught with danger, dangerous, hazardous, perilous, parlous, periculous, unsafe, unprotected &c (safe, protect), insecure, untrustworthy, built upon, sand, on a sandy basis, wildcat, defenseless, fenceless, guardless, harborless, unshielded, vulnerable, expugnable, exposed, open to, aux abois, at bay, on the wrong side of the wall, on a lee shore, on the rocks, at stake, in question, precarious, critical, ticklish, slippery, slippy, hanging by a thread, with a halter round one's neck, between the hammer and the anvil, between Scylla and Charybdis, between a rock and a hard place, between the devil and the deep blue sea, between two fires, on the edge of a precipice, on the brink of a precipice, on the verge of a precipice, on the edge of a volcano, in the lion's den, on slippery ground, under fire, not out of the wood, unwarned, unadmonished, unadvised, unprepared, off one's guard, tottering, unstable, unsteady, shaky, top-heavy, tumbledown, ramshackle, crumbling, waterlogged, helpless, guideless, in a bad way, reduced to the last extremity, at the last extremity, trembling in the balance, nodding to its fall, threatening, ominous, illomened, alarming, explosive, adventurous, incidit in Scyllam qui vult vitare Charybdim, nam tua res agitur paries dum proximus ardet.