worldliness has 3 distinct synonyms spread across 1 of its 2 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. Its one recorded opposite is otherworldliness.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
the quality or character of being intellectually sophisticated and worldly through cultivation or experience or disillusionment
concern with worldly affairs to the neglect of spiritual needs
“he disliked the worldliness of many bishops around him”
Synonyms, antonyms and the broader and narrower relations for worldliness come from Princeton University’s WordNet. Full sources and licences.