Synonyms of the word

historic

• adj. Very important, very noteworthy: having importance or significance in history.
• adj. Old-fashioned, untouched by modernity.
• adj. (now uncommon) Synonym of historical: of, concerning, or in accordance with recorded history or the past…
• adj. (grammar) Various grammatical tenses and moods specially used in retelling past events.
• n. (obsolete) A history, a non-fiction account of the past.
• n. (obsolete) A historian.

historical

• adj. Of, concerning, or in accordance with recorded history, (particularly) as opposed to legends, myths, and…
• adj. Of, concerning, or in accordance with the past generally.
• adj. Of, concerning, or in accordance with the scholarly discipline of history.
• adj. Forming compound adjectives with the meaning "historical/~" or "historically".
• n. A historical romance.

important

• adj. Having relevant and crucial value.

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.