crude /kɹuːd/adjective 8noun 2forms 3 adjective8 •In a natural, untreated state. •Not adjusted or further analyzed. •Characterized by simplicity, especially something not carefully or expertly made. •Lacking tact or taste.You shouldn't use such crude language when talking to the bank manager. •Lacking concealing elements. •Pertaining to the uninflected stem of a word. •(no longer used) Uncooked, raw.Her mete was very crude, She had not wel endude; […] — 1503 •(no longer used) Immature or unripe. noun2 •Any substance in its natural state. •Ellipsis of crude oil. formscrudes · cruder · crudest