RichThesaurus
of great moment
of great moment
synonyms
of great consequence
epoch-making
grave
serious
pivotal
consequential
far-reaching
important
critical
decisive
weighty
momentous
crucial
urgent
vital
historic
significant
signal
life-and-death
of significance
of the first magnitude
of importance
of the greatest significance
seminal
substantial
all-important
major
portentous
of note
of the utmost importance
very important
world-shaking
of import
material
of great import
earth-shattering
of vital importance
key
fateful
apocalyptic
earth-shaking
world-shattering
of great moment
antonyms
unimportant
trivial
