To throw or cast back.To throw away, as anything undesirable or useless; cast off; discard: as, to pick out the good and reject the bad; to reject a lover.To refuse to receive; decline haughtily or harshly; slight; despise.Synonyms To throw aside, cast off. See refuse.n. That which is rejected or thrown out; a cull; specifically, in prehistoric archæol., an unfinished stone implement, spoiled or broken in the process of manufacture.