Another word for "lack of interest" is apathy or indifference. These both basically refer to a person who is uninterested, unresponsive or impassive. Another word to describe this sort of person could also be perfunctory.
incommunicado
lacking skill
Harsh truth
Another word for want is long. You can also go to www.thesaurus.reference.com for other synonyms.
be without
Another word for "lack of interest" is apathy or indifference. These both basically refer to a person who is uninterested, unresponsive or impassive. Another word to describe this sort of person could also be perfunctory.
Lack, want,
lack dearth
lethargic
incommunicado
Lazyness
lacking skill
Harsh truth
to lack to deprive to sacrifice
Irresponsibility describes a lack of responsible action.
benighted; lack of knowledge, uncultivated; etc;