having or showing a very abnormal or sick state of mind the movie's villain was a just a clichÃ©d axe-wielding nutcase with a maniacal laugh Synonyms balmy, barmy [chiefly British], bats, batty, bedlam, bonkers, brainsick, bughouse [slang], certifiable, crackbrained, cracked, crackers, crackpot, cranky [dialect], crazed, crazy, cuckoo, daffy, daft, ...
His great empire stretched from central Russia down to the Aral Sea in the west, and from northern China down to Beijing in the east. On August 18, 1227, while putting down a revolt in the kingdom of Xi Xia, Genghis Khan died.
Born around 1165 and first known as Temujin, Genghis was the son of the chief of the Yakka Mongols. When he was 10, his father was poisoned and he became chief. However, the tribe deserted him, and he was forced to live alone, and survived by digging roots for food and keeping sheep.