Synonyms of 'thievish'
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If you say that someone is light-fingered, you mean that they steal things.
Which goods are most often targeted by light-fingered customers?
If you describe a person or their behaviour as rapacious, you disapprove of their greedy or selfish behaviour.
He had a rapacious appetite for bird's nest soup.
Thesaurus for thievish from the Collins English Thesaurus
addicted to thieving , or stealing