Synonyms for Enclosed (same or very similar meaning)
WordNet sense 1 (confined on all sides):
encircled, surroundedWordNet sense 2 (enclosed in the same envelope or package):
includedWordNet sense 3 (enclosed firmly in a surrounding mass):
embeddedWordNet sense 4 (enclosed by a confining fence):
confined, fenced inFrom the ODE community, based on WordNetadd/edit