furtive
[adjective]
Synonyms: sly, clandestine, conspiratorial, secretive, sneaky, stealthy, surreptitious, underhand, under-the-table

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Antonyms: forthright, barefaced, brazen, open
Contrasted words: brash, impudent, presumptuous
Related Words: artful, crafty, cunning, foxy, guileful, insidious, scheming, shifty, sly, sneaky, tricky, wily, calculating, cautious, circumspect, wary, cloaked, disguised, masked

[TahlilGaran] English Synonym Dictionary ▲

fur‧tive /ˈfɜːtɪv $ ˈfɜːr-/ adjective
[Date: 1600-1700; Language: French; Origin: furtif, from Latin fur 'thief']
behaving as if you want to keep something secret Synonym : secretive:
There was something furtive about his actions.
furtive glances/looks
Chris kept stealing furtive glances at me.
—furtively adverb:
She opened the door and looked furtively down the hall.
—furtiveness noun [uncountable]

[TahlilGaran] Dictionary of Contemporary English ▲

furtive
adj.
VERBS be, feel, look, seem, sound | become The look in his eyes became furtive.
ADV. very | almost The secretary looked almost furtive when I walked in.
slightly | oddly He cast an oddly furtive glance at her.

[TahlilGaran] Collocations Dictionary ▲