Synonyms of the word 
HOUSEBOUND → CONFINED - HOMEBOUND - SHUT-IN
housebound
- adj. Restricted to one's home, as by physical infirmity.
confined
- v. simple past tense and past participle of confine.
- adj. Not free to move.
homebound
- adj. Confined to one's home, unable to leave it for some reason.
- adj. Heading homeward.
shut-in
- adj. Confined to a location, as by infirmity or illness.
- adj. Introverted.
- n. A person confined to a location, as by illness or infirmity.
If you are interested in words, visit the following sites :
- wiktionary.org/housebound For complete definition of a word
- 1word.ws/housebound to play with words, suffixs, prefixs, etc.