determinate has 1 distinct synonym spread across 1 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 indeterminate.
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.
precisely determined or limited or defined; especially fixed by rule or by a specific and constant cause
“a determinate distance”
not continuing to grow indefinitely at the apex
“determinate growth”
supplying or being a final or conclusive settlement
“a definitive verdict”
Synonyms, antonyms and the broader and narrower relations for determinate come from Princeton University’s WordNet. Full sources and licences.