The definition of auspicious is a situation that is positive or indicative of good things to come or is someone who is lucky.
Unusually good; outstanding:
The definition of fortunate is someone or something that is lucky or favorable, or someone who is materially well-off.
Worth remembering; notable
The definition of notable is something or unusual, or something or someone worth noting and paying attention to.
Find another word for red-letter. In this page you can discover 7 synonyms, antonyms, idiomatic expressions, and related words for red-letter, like: auspicious, banner, fortunate, happy, memorable, notable and noteworthy.