noun, na-adjective, noun which may take the genitive case particle 'no'
homebody; stay-at-home; reluctant to go out
Describes a person who dislikes leaving home and prefers to stay indoors. Often used self-deprecatingly or to describe a homebody lifestyle.
He's a homebody and hardly leaves the house on his days off.
Because I'm reluctant to go out, I even do my shopping online.
引きこもり implies social withdrawal and often a more severe, long-term isolation, while 出不精 simply means a preference for staying home without necessarily avoiding all social contact.
Standard kanji spelling. 出無精 is a less common variant.
Variant spelling; 出不精 is more common.
Compound of 出 (で, 'going out') and 不精 (ぶしょう, 'laziness, indolence'). The exact historical derivation is uncertain, but the word literally suggests laziness about going out.