忌惮 jìdàn to fear Origin Definitions Defs Strokes Stroke Words Sentences Sents 肆无忌惮 sìwújìdàn unbridled unbridled; brazen; absolutely unrestrained and without the slightest scruple无所忌惮 wúsuǒjìdàn to stick at nothing to be without any fear or restraint; to have no scruples whatsoever