ETYM Cf. Latin momentosus rapid, momentary.
Of considerable importance or consequence; having long-term or historic effects.
ETYM Latin significans, -antis, p. pr. of significare. Related to Signify.
1. Important in effect or meaning; SYN. important.
2. Fairly large; SYN. substantial.
3. (Statistics) Too closely correlated to be attributed to chance and therefore indicating a systematic relation.
In a momentous way.
1. In a significant manner.
2. In a statistically significant way.