prehistoric
/ˌpriːhɪˈstɒrɪk/adjective
1- of, relating to, or denoting the period before written records（与）有文字记载历史以前（有关）的, （与）史前（有关）的：
prehistoric man.
史前人类。
1.1
- informal very old, primitive, or out of date〈非正式〉老旧不堪的; 原始的; 过时的：
my dad's electric typewriter was a prehistoric machine.
我爸的电动打字机简直是台老古董。
派生词
prehistorian
nounprehistorically
adverb词源