Search Result for "dangerous": 
Wordnet 3.0

ADJECTIVE (2)

1. involving or causing danger or risk; liable to hurt or harm;
- Example: "a dangerous criminal"
- Example: "a dangerous bridge"
- Example: "unemployment reached dangerous proportions"
[syn: dangerous, unsafe]

2. causing fear or anxiety by threatening great harm;
- Example: "a dangerous operation"
- Example: "a grave situation"
- Example: "a grave illness"
- Example: "grievous bodily harm"
- Example: "a serious wound"
- Example: "a serious turn of events"
- Example: "a severe case of pneumonia"
- Example: "a life-threatening disease"
[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;
      hazardous; unsafe.
      [1913 Webster]

            Our troops set forth to-morrow; stay with us;
            The ways are dangerous.               --Shak.
      [1913 Webster]

            It is dangerous to assert a negative. --Macaulay.
      [1913 Webster]

   2. Causing danger; ready to do harm or injury.
      [1913 Webster]

            If they incline to think you dangerous
            To less than gods.                    --Milton.
      [1913 Webster]

   3. In a condition of danger, as from illness; threatened with
      death. [Colloq.] --Forby. Bartlett.
      [1913 Webster]

   4. Hard to suit; difficult to please. [Obs.]
      [1913 Webster]

            My wages ben full strait, and eke full small;
            My lord to me is hard and dangerous.  --Chaucer.
      [1913 Webster]

   5. Reserved; not affable. [Obs.] "Of his speech dangerous."
      --Chaucer. -- Dan"ger*ous*ly, adv. --
      Dan"ger*ous*ness, n.
      [1913 Webster]


WordNet (r) 3.0 (2006):

dangerous
    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,
       severe, life-threatening]


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,
   untrustworthy, wicked