sanctityEnglishOxford American Thesaurussanctity noun 1 few could attain the sanctity of St. Francis: holiness, godliness, sacredness, blessedness, saintliness, sanctitude, spirituality, piety, piousness, devoutness, devotion, righteousness, goodness, virtue, virtuousness, purity. ▷antonyms wickedness. 2 gone is the sanctity of the family meal: sacrosanctity, ultimate importance, inviolability; rare paramountcy.