Dangerous synonyms | Best 92 synonyms for dangerous

hazardous

Risky; dangerous; perilous

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26

treacherous

Characterized by unforeseen or hidden hazards; dangerous or deceptive:

62

30

risky

Involving risk; hazardous; dangerous

57

29

unsafe

Not safe; dangerous.

66

43

perilous

Full of or involving peril; dangerous or risky.

42

28

out-of-the-frying-pan-and-into-the-fire

Involving an active threat

40

38

insecure

The definition of insecure is having a lack of confidence, or exposed to danger or risk.

29

28

cruel (related)

2

jeopardous

Marked by jeopardy; dangerous or perilous

14

15

grievous

Causing grief, pain, or anguish:

8

9

lethal (related)

1

2

damaging (related)

1

2

toxic (related)

1

2

deadly (related)

0

1

parlous

Dire, terrible, appalling.

10

12

critical

Relating to criticism or careful analysis, such as literary or film criticism.

9

11

safe (antonym)

Free from danger or injury; undamaged or unhurt:

3

5

serious

The definition of serious is showing deep thought, not joking, or a situation that requires careful thought.

1

3

threatening

Making or implying threats:

1

3

grave

Fraught with danger or harm:

1

3

irresponsible (related)

1

3

hairy

Of a person, having a lot of hair on the body.

0

2

destructive (related)

0

2

troublesome (related)

0

2

full of risk

Not safe

14

17

ominous (related)

Specifically, giving indication of a coming ill; being an evil omen; threatening; portentous; inauspicious.

11

14

chancy

(Scot.) Bringing good luck

1

4

severe

Unsparing, harsh, or strict, as in treatment of others:

1

4

poisonous (related)

1

4

speculative

Characterized by speculation; based on guessing or unfounded opinions.

0

3

nasty

Mean; malicious; ill-humored

0

3

imminent

The definition of imminent is something that is likely to happen very soon.

0

3

secure (antonym)

Reliable; dependable:

0

3

frightening (related)

0

3

harmful (related)

0

3

fraught with danger

Not safe

13

17

formidable

Difficult to undertake, surmount, or defeat:

8

12

touchy

Very risky

1

5

precarious

Based on uncertain, unwarranted, or unproved premises:

1

5

uncertain (related)

Subject to change; variable:

0

4

unpleasant (related)

0

4

rocky

(Figuratively) Not easily impressed or affected; hard; unfeeling; obdurate; as, a rocky bosom.

15

20

venturesome

Bold; willing to take risks; adventurous.

4

9

mortal

Fatally vulnerable; vital.

8

14

delicate

Intended for use with fragile items.

5

11

life-threatening

Used to describe something that endangers the continued life of the subject.

5

11

explosive

(Slang) Easily driven to anger, usually with reference to a person.

4

10

menacing

The definition of menacing is someone or something that is threatening or that suggests danger.

3

9

impending

Approaching; drawing near; about to happen

3

9

venturous

Venturesome.

3

9

adventurous

(Of a person) Inclined to adventure; willing to incur risks; prone to embark in hazardous enterprise; rashly daring.

5

12

malignant

The definition of malignant is something evil or intending harm, a tumor that is spreading, or a disease that is invasive.

2

9

breakneck

Likely to cause an accident:

5

13

involving risk

Not safe

4

12

causing danger

Not safe

4

12

ticklish

Very sensitive or easily upset; touchy

4

12

unstable

Unpredictable.

4

12

shaky

Not dependable or reliable; questionable

4

12

impregnable

Impossible to capture or enter by force:

4

12

endangered (related)

In danger, at risk, said of something where there is a strong possibility something bad will happen to it (for example, a species in danger of going extinct)

4

12

unsound

Not safe, firm, or solid; insecure

4

12

unprotected

Not protected; open to assault, injury, damage, or theft.

3

11

unshielded

Not shielded.

3

11

on a collision course

Involving an active threat

3

11

unsheltered

Without shelter; exposed.

2

10

vulnerable

Easily hurt, as by adverse criticism; sensitive

2

10

exposed

Not safe

2

10

portentous

Ponderous or pompous; self-important

2

10

thorny

Having many thorns or abounding in thorn-covered vegetation:

2

10

fatal

The definition of fatal is something that causes death or that leads to failure or disaster.

2

10

innocent (antonym)

Not guilty of a specific crime or offense; legally blameless:

2

10

safety (related)

Giving safety; reducing danger or harm

2

10

slippery

Not trustworthy; elusive or tricky:

1

9

unsteady

Changeable; inconstant; wavering

1

9

rickety

Liable to collapse or break down because weak or unsteady

1

9

unhealthy

Sick or ill

1

9

dicey

Of uncertain, risky outcome.

1

9

ugly

Repulsive or offensive; objectionable:

1

9

terrible

Extremely formidable:

1

9

bad

Not suitable or fitting.

9

18

armed

Having arms (limbs) of a specified kind

3

12

help (related)

Causing or marked by danger or pain, for example

3

12

alarming

Causing apprehension, fear or alarm; frightening

2

11

guarded (antonym)

Kept from escape or trouble; held in check; supervised

2

11

touch-and-go

Uncertain, risky, or precarious

1

10

sure (antonym)

Having or showing no doubt; positive; confident

1

10

helpful (antonym)

Providing assistance; useful.

1

10

untroubled (antonym)

Not disturbed or distracted.

3

13

unhazardous (antonym)

Not hazardous.

3

13

hot

(Slang) Very good or impressive. Often used in the negative:

1

12

beneficial (antonym)

(Law) For one's own benefit

1

12

careful (antonym)

The definition of careful is someone or something that works or thinks in a cautious, thorough or thoughtful way.

3

15

Dangerous synonyms and antonyms

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Dangerous synonyms and antonyms

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