real has 12 distinct synonyms spread across 7 of its 13 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 2 recorded opposites are unreal, nominal.
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.
no less than what is stated; worthy of the name
“the real reason”
of, relating to, or representing an amount that is corrected for inflation
“real prices”
having substance or capable of being treated as fact; not imaginary
“the substantial world”
coinciding with reality
“perceptual error...has a surprising resemblance to veridical perception”
the basic unit of money in Brazil; equal to 100 centavos
2 of the 13 recorded senses carry no synonym, antonym or related term, so they are not shown above. Every sense, with its definition and examples, is on the full entry for real.
Synonyms, antonyms and the broader and narrower relations for real come from Princeton University’s WordNet. Full sources and licences.