不规则 bùguīzé irregular Origin Definitions Defs Strokes Stroke Words Sentences Sents 不规则三角形 bùguīzésānjiǎoxíng scalene triangle scalene triangle (math.)不规则四边形 bùguīzésìbiānxíng irregular quadrilateral A four-sided polygon whose sides and angles are not all equal, typically referring to one with no parallel sides.