S: (n) consequence, import, moment (having important effects or influence) "decisions of great consequence are made by the president himself"; "virtue is of more moment than security"; "that result is of no consequence"
W: (adj) consequential [Related to: consequence] (having important issues or results) "the year's only really consequential legislation"; "an eventful decision"
W: (adj) momentous [Related to: moment] (of very great significance) "deciding to drop the atom bomb was a very big decision"; "a momentous event"