momentous (adjective) momentous: important; serious
Detalii: momentary means fleeting, brief; momentous means significant and having great consequence
Sinonime: criminal, crooked, cunning, dishonest, fraudulent, furtive, kleptomaniacal, light-fingered, pilfering, piratic, plunderous, predatory, rapacious, secretive, sly, spoliative, stealthy, sticky-fingered
Antonime: immaterial,
insignificant,
trifling,
trivial,
unimportant