prehistoric
adj
of or concerning the time before recorded history 史前的
prehistoric man, monuments, cave paintings 史前的人类、 遗迹、 洞穴壁画
(joc or derog 谑或贬) His ideas on the education of girls are positively prehistoric, ie extremely old-fashioned. 他在女子教育问题上所持的观点是老掉牙的.