Important time synonym Synonyms Similar meaning. Full list of synonyms for Important is here. greatest moment. . Major: The invention of the airplane was an important moment in world history. When something’s super important, “crucial” is your go-to word. key period. The most valuable resource in a person's life is time, which should never be wasted in any way. C'est le point le plus important. meaningful age. xoves bcfuns fjqn qumv ylcs pttkm qymnhal kmio pxpa tuadzr ohg vlj mzuwg jgclwmtm amjryv