sensory has 4 distinct synonyms spread across 3 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 extrasensory.
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.
of a nerve fiber or impulse originating outside and passing toward the central nervous system
“sensory neurons”
relating to or concerned in sensation
“the sensory cortex”
Synonyms, antonyms and the broader and narrower relations for sensory come from Princeton University’s WordNet. Full sources and licences.