Synonyms of seclusive

2 Syllables
withdrawn, cloistral, screened
3 Syllables
hermit-like, reserved, standoffish, monastic, secluse, retiring, hermitic, cloistered, blockaded, hermetic, ascetic, secluded
4 Syllables
eremetic, misanthropic, hermitlike, reclusive, sequestered, solitary, antisocial, isolated