significant as in of considerable importance, size, or worth
"won by a substantial margin"
substantialof considerable importance, size, or worth; of or relating to the real nature or essential elements of something; having substance or capable of being treated as fact; providing abundant nourishment; of good quality and condition; having an abundant supply of money or possessions of value
significant as in too closely correlated to be attributed to chance and therefore indicating a systematic relation
"the interaction effect is significant at the .01 level"
"no significant difference was found"
significant as in rich in significance or implication
"a meaning look"
"a significant silence"
pregnant carrying developing offspring within the body or being about to produce new life ; rich in significance or implication; filled with or attended with