[syn: dangerous, grave, grievous, serious, severe, life-threatening]
The Collaborative International Dictionary of English v.0.48:
Dangerous \Dan"ger*ous\, a. [OE., haughty, difficult, dangerous,
fr. OF. dangereus, F. dangereux. See Danger.]
1. Attended or beset with danger; full of risk; perilous;
Our troops set forth to-morrow; stay with us;
The ways are dangerous. --Shak.
It is dangerous to assert a negative. --Macaulay.
2. Causing danger; ready to do harm or injury.
If they incline to think you dangerous
To less than gods. --Milton.
3. In a condition of danger, as from illness; threatened with
death. [Colloq.] --Forby. Bartlett.
4. Hard to suit; difficult to please. [Obs.]
My wages ben full strait, and eke full small;
My lord to me is hard and dangerous. --Chaucer.
5. Reserved; not affable. [Obs.] "Of his speech dangerous."
--Chaucer. -- Dan"ger*ous*ly, adv. --
WordNet (r) 3.0 (2006):
adj 1: involving or causing danger or risk; liable to hurt or
harm; "a dangerous criminal"; "a dangerous bridge";
"unemployment reached dangerous proportions" [syn:
dangerous, unsafe] [ant: safe]
2: causing fear or anxiety by threatening great harm; "a
dangerous operation"; "a grave situation"; "a grave illness";
"grievous bodily harm"; "a serious wound"; "a serious turn of
events"; "a severe case of pneumonia"; "a life-threatening
disease" [syn: dangerous, grave, grievous, serious,
Moby Thesaurus II by Grady Ward, 1.0:
57 Moby Thesaurus words for "dangerous":
alarming, bad, chance, chancy, critical, dangersome, desultory,
explosive, fell, fraught with danger, grievous, hairy, haphazard,
harmful, hazardous, hit-or-miss, iffy, infirm, insecure,
insubstantial, jeopardous, major, menacing, parlous, periculous,
perilous, precarious, provisional, random, rickety, risky, serious,
shaky, shifting, shifty, slippery, temporary, tentative,
threatening, ticklish, treacherous, ugly, uncertain, undependable,
unfaithworthy, unhealthy, unreliable, unsafe, unsolid, unsound,
unstable, unsteadfast, unsteady, unsubstantial, unsure,