prudently has 1 distinct synonym spread across 1 of its 1 sense. 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 imprudently.
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.
in a prudent manner
“I had allotted my own bedroom for necking, prudently removing both the bed and the key, and taken both myself and my typewriter into my son's bedroom.”
Synonyms, antonyms and the broader and narrower relations for prudently come from Princeton University’s WordNet. Full sources and licences.