Open English Wordnet
Adverbs
(r)heavilyin a heavy-footed manner“he walked heavily up the three flights to his room” (r)heavilywith great force“she hit her arm heavily against the wall” (r)heavilyin a manner designed for heavy duty“a heavily constructed car”,
“heavily armed” (r)heavy, heavilyslowly as if burdened by much weight“time hung heavy on their hands” (r)heavilyin a labored manner“he breathed heavily”