Momentous

Mo·men'tous adjective [ Confer Latin momentosus rapid, momentary.] Of moment or consequence; very important; weighty; as, a momentous decision; momentous affairs. -- Mo*men'tous*ly , adverb -- Mo*men'tous*ness , noun...
Found on http://www.encyclo.co.uk/webster/M/90

momentous

adjective of very great significance; `deciding to drop the atom bomb was a very big decision`; `a momentous event`
Found on http://wordnetweb.princeton.edu/perl/webwn?s=momentous

Momentous

• (a.) Of moment or consequence; very important; weighty; as, a momentous decision; momentous affairs.
Found on http://thinkexist.com/dictionary/meaning/momentous/

momentous

of very great significance
Found on https://www.vocabulary.com/lists/151399
No exact match found