Use the word dangerous to describe anything that can potentially cause serious harm, like a snarling pit bull or an icy, treacherous road.


Attended or beset with danger; full of risk; perilous; hazardous; unsafe.

Adjective S.
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"

involving or causing danger or risk; liable to hurt or harm; "a dangerous criminal"; "a dangerous bridge"; "unemployment reached dangerous proportions"

Attended or beset with danger; full of risk; perilous; hazardous; unsafe.

Causing danger; ready to do harm or injury.

In a condition of danger, as from illness; threatened with death.

Hard to suit; difficult to please.

Reserved; not affable.


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.
Our troops set forth to-morrow; stay with us; The ways are dangerous.
It is dangerous to assert a negative.
2. Causing danger; ready to do harm or injury.
If they incline to think you dangerous To less than gods.
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.
5. Reserved; not affable. [Obs.] "Of his speech dangerous." Chaucer. -- Dan"ger*ous*ly, adv. -- Dan"ger*ous*ness, n.

Attended or beset with danger; full of risk; perilous; hazardous; unsafe.


Usage Examples

Art is dangerous. It is one of the attractions: when it ceases to be dangerous you don't want it.

Ads featuring real women and real beauty are such a necessary component to offset the potentially dangerous programming out there for little girls.

'Hamlet' is one of the most dangerous things ever set down on paper. All the big, unknowable questions like what it is to be a human being the difference between sanity and insanity the meaning of life and death what's real and not real. All these subjects can literally drive you mad.

All men dream, but not equally. Those who dream by night in the dusty recesses of their minds, wake in the day to find that it was vanity: but the dreamers of the day are dangerous men, for they may act on their dreams with open eyes, to make them possible.

America's most dangerous diseases have developed an immunity to politics. We suffer not from a failure of political organization or power, but a failure of love.

Being famous before you've formed your personality, before you have that self-esteem, is dangerous.

A little sincerity is a dangerous thing, and a great deal of it is absolutely fatal.

A world without nuclear weapons would be less stable and more dangerous for all of us.

Beware of false knowledge it is more dangerous than ignorance.

Misspelled Form

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Other Usage Examples

A little knowledge is a dangerous thing, but a little want of knowledge is also a dangerous thing.

A little learning is a dangerous thing Drink deep, or taste not the Pierian spring.

A little learning is a dangerous thing, but we must take that risk because a little is as much as our biggest heads can hold.

A little learning, indeed, may be a dangerous thing, but the want of learning is a calamity to any people.

A little learning is not a dangerous thing to one who does not mistake it for a great deal.

A little learning is a dangerous thing, but a lot of ignorance is just as bad.

A lie would have no sense unless the truth were felt dangerous.

An error is the more dangerous in proportion to the degree of truth which it contains.

As with most liberal sexual ideas, what makes the world a better place for men invariably makes it a duller and more dangerous place for women.


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