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perfidious
adjective
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How to pronounce perfidious:

Definition of perfidious:

perfidious (adjective):
treacherous or deceitful
of, relating to, or characterized by perfidy
adjective. tending to betray; especially having a treacherous character as attributed to the Carthaginians by the Romans.

Synonyms for perfidious:

corrupt
deceitful
dishonest
disloyal
double-dealing
double-faced
faithless
false
fickle
inconstant
recreant
traitorous
treacherous
treasonous
two-faced
unfaithful
unreliable
untrue
untrustworthy

Antonyms for perfidious:

above reproach
above-board
aboveboard
actual
allegiant
ardent
artless
attached
authentic
believing
bold
candid
committed
conscionable
conspicuous
constant
costant
decent
dedicated
dependable
devoted
devout
dinkum
direct
down-the-line
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