discourage has 4 distinct synonyms spread across 2 of its 3 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 encourage.
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.
try to prevent; show opposition to
“We should discourage this practice among our youth”
deprive of courage or hope; take away hope from; cause to feel discouraged
Synonyms, antonyms and the broader and narrower relations for discourage come from Princeton University’s WordNet. Full sources and licences.