Synonyms of the word

prehistorical

• adj. prehistoric.

past

• n. The period of time that has already happened, in contrast to the present and the future.
• n. (grammar) The past tense.
• adj. Having already happened; in the past; finished.
• adj. (postmodifier) Following expressions of time to indicate how long ago something happened; ago.
• adj. Of a period of time: having just gone by; previous.
• adj. (grammar) Of a tense, expressing action that has already happened or a previously-existing state.
• adv. in a direction that passes.
• adv. Passing by, especially without stopping or being delayed.
• prep. beyond in place, quantity or time.

prehistoric

• adj. Of relating to the epoch before written record.
• adj. Nonmodern.