prehistoric /ˌpriːhɪˈstorɪk/ adjective also prehistorical /ˌpriːhɪˈstorɪkəl/ /ˌpriːhɪˈstorɪk/
adjective
also prehistorical /ˌpriːhɪˈstorɪkəl/ Learner's definition of PREHISTORIC
1
: of, relating to, or existing in the time before people could write史前的;有文字记载以前的 2
[more prehistoric; most prehistoric] informal + disapproving : very old or outdated古老的;过时的