thievish (adjective) thievish: given to thievery
Sinonime: crooked,
cunning,
dishonest,
fraudulent,
furtive, kleptomaniacal, larcenous, light-fingered, pilfering, piratic, plunderous, predatory,
rapacious,
secretive,
sly*, spoliative, stealing,
stealthy, sticky-fingered