pro·pi·tious
prəˈpiSHəs/
adjective
adjective: propitious
  1. giving or indicating a good chance of success; favorable.
    “the timing for such a meeting seemed propitious”
    synonyms: favorable, auspicious, promising, providential, advantageous, optimistic, bright, rosy, heaven-sent, hopeful;

    opportune, timely
    “the timing for such a meeting seemed propitious”
    antonyms: inauspicious, unfortunate
    • archaic
      favorably disposed toward someone.
      “there were points on which they did not agree, moments in which she did not seem propitious”
Origin
late Middle English: from Old French propicieus or Latin propitius ‘favorable, gracious.’