prehistoric
🇺🇸
/ˌpriːhɪˈstɔːrɪk/
🇬🇧
/ˌpriːhɪˈstɒrɪk/
relating to the time before written records existed
The prehistoric era was filled with giant creatures that no longer exist today.
史前時代充滿了今天已不存在的巨大生物。