treacherous
Not to trust
Treacherous describes someone or something that betrays trust or conceals danger.
A treacherous ally appears loyal but isn't.
Treacherous waters look calm but hide currents or rocks.
The word implies deception—the danger isn't obvious: The treacherous path gave way beneath him.
Weather, terrain, and people can all be treacherous.
Fraught with danger
- hazardousLikely to cause injury
- dangerousApt to cause harm
- precariousDangerously insecure
- riskyInvolving possible harm
unsafe · slippery · icy · rocky · steep · unstable · crumbling · uneven
Inclined to mislead others
- duplicitousDeliberately deceptive in nature
- two-facedInsincere and deceptive
- falseNot matching reality
- misleadingCausing false beliefs
dishonest · untrustworthy · insidious · sneaky · underhanded · scheming · conniving · guileful
Cannot be anticipated
- volatileLiable to sudden change
- changeableCapable of alteration
- unstableProne to sudden change
- unreliableNot consistently performing
capricious · deceptive · erratic · shifting · variable · fickle · mercurial · temperamental
Covert betrayal of trust
- double-crossTreacherous deception of partner
- turncoatOne who betrays allegiance
- perfidyDeliberate breach of trust
- disloyaltyBreach of allegiance
sellout · defector · sedition · conspiracy · undermine · sabotage · apostasy · renegade
perilous
Fraught with danger
- hazardousLikely to cause injury
- dangerousApt to cause harm
- precariousDangerously insecure
risky · unsafe · slippery · icy · rocky · steep · unstable · crumbling · uneven · rugged
deceitful
Inclined to mislead others
- duplicitousDeliberately deceptive in nature
- two-facedInsincere and deceptive
- falseNot matching reality
misleading · dishonest · untrustworthy · insidious · sneaky · underhanded · scheming · conniving · guileful · disingenuous
unpredictable
Cannot be anticipated
- volatileLiable to sudden change
- changeableCapable of alteration
- unstableProne to sudden change
unreliable · capricious · deceptive · erratic · shifting · variable · fickle · mercurial · temperamental · inconstant
backstabbing
Covert betrayal of trust
- double-crossTreacherous deception of partner
- turncoatOne who betrays allegiance
- perfidyDeliberate breach of trust
disloyalty · sellout · defector · sedition · conspiracy · undermine · sabotage · apostasy · renegade · recreant
currents
Directional flows of movement
whirlpool · shoals · reef · rocks · shallows · swells · tides · waves · surf · straits
- cunningcunning, craftiness, crafty, guile, slyness
- path conditionsmuddy, rocky, icy, slippery, wet
- trail descriptionsscenic, rugged, challenging, steep, rocky
- obstacle wordsimpassable, blocking, steep, slippery, hazardous
- betrayersbackstabber, turncoat, double-crosser, Judas, defector
- blizzardwhiteout, snowstorm, snow, wind, ice
treacherousloyal
Firm in allegiance
faithful · trustworthy · devoted · true · steadfast
treacheroussafe
Free from peril
secure · harmless · stable · reliable · dependable
treacherousforthright
Directly honest in manner
honest · sincere · straightforward · candid · transparent