Treacherous synonyms | Best 67 synonyms for treacherous

unfaithful

Not having religious faith

16

4

dangerous

Causing danger; ready to do harm or injury.

10

1

perilous

Full of or involving peril; dangerous or risky.

11

5

reliable (antonym)

(Signal processing, of a communication protocol) Such that either a sent packet will reach its destination, even if it requires retransmission, or the sender will be told that it didn't

5

1

insecure

Not safe from danger

8

5

recreant

(Now poetic, literary) Unfaithful to someone, or to one's duties or honour; disloyal, false. [from 17th c.]

6

3

undependable

The opposite of dependable

5

4

safety (related)

Giving safety; reducing danger or harm

5

4

steady. See syn. study at faithless.faithless (antonym)

Unreliable

2

1

false

Contrary to fact or truth:

2

1

true (antonym)

(Logic) Of the state in Boolean logic that indicates an affirmative or positive result.

2

1

deceptive

Deceiving or intended to deceive

1

0

difficult

Not easy to persuade or convince; stubborn.

1

0

faithless

Lacking faith; lacking belief in something.

1

0

precarious

The definition of precarious is something dependent on forces or circumstances outside one's control.

1

0

risky

Involving risk; hazardous; dangerous

1

0

tricky

Adept at using deception

1

0

untrustworthy

Not deserving of trust; unreliable.

1

0

honest (antonym)

Marked by or displaying integrity; upright:

1

0

loyal (antonym)

Having or demonstrating undivided and constant support for someone or something.

1

0

disloyal

Without loyalty; faithless, traitorous.

1

0

perfidious

Characterized by perfidy; treacherous

1

0

traitorous

Having the character of a traitor; disloyal

1

0

chancy

(Scot.) Bringing good luck

1

0

hazardous

Marked by danger; perilous.

1

0

jeopardous

Marked by jeopardy; dangerous or perilous

1

0

unsafe

Not safe; dangerous

1

0

hairy

Difficult, complex, intricate, or intimidating.

1

0

unreliable

Marked by or exhibiting a lack of reliability.

1

0

forthright (antonym)

Direct and without evasion; straightforward:

2

misleading

Tending to mislead; deceptive.

1

dissembled

Unreliable

1

deceitful

The definition of deceitful is someone or something intentionally untruthful or intended to mislead.

1

twofaced

Unreliable

1

ensnaring

Unreliable

1

faulty

Having or displaying faults; not perfect; not adequate or acceptable.

1

unstable

The definition of unstable is something that is prone to changing often, or a person with wild mood swings.

1

shaky

Not firm, substantial, or secure; weak, unsound, or unsteady

1

slippery

Of a surface, having low friction, often due to being covered in a non-viscous liquid, and therefore hard to grip, hard to stand on without falling, etc.

1

ticklish

Needing careful handling; precarious; delicate

1

ominous

Of or being an omen, especially an evil one.

1

alarming

Causing apprehension, fear or alarm; frightening

1

menacing

Threatening.