Synonyms of treacherous in English:

treacherous


See definition of treacherous

adjective

1‘two treacherous Scottish lords betrayed Wallace's whereabouts’

SYNONYMS

traitorous, disloyal, perfidious, faithless, unfaithful, duplicitous, false-hearted, deceitful, false, untrue, back-stabbing, double-crossing, double-dealing, two-faced, Janus-faced, untrustworthy, unreliable, undependable, fickle

apostate, renegade, subversive, seditious, rebellious, mutinous, breakaway

treasonable, treasonous

informal two-timing

rare Punic

ANTONYMS

loyal, faithful

2‘treacherous driving conditions’

SYNONYMS

dangerous, hazardous, perilous, unsafe, precarious, risky, deceptive, unreliable, undependable, unstable

icy, ice-covered, slippery, glassy

informal dicey, hairy, slippy

North American informal gnarly

ANTONYMS

safe, reliable