rude
adjective
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socially incorrect in behaviorunmannered
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lacking civility or good mannersuncivil
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belonging to an early stage of technical development“characterized by simplicity and (often) crudeness”primitive
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lacking in refinement or grace“We felt rude and uncultured compared to our neighbors.”underbredill-bredbounderishlowbredyokelish
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(used especially of commodities) being unprocessed or manufactured using only simple or minimal processesnatural