What are synonyms of underprivileged?

Here are some synonyms for "underprivileged," ranging from more formal to informal, and with different nuances:

Formal:

* Disadvantaged

* Deprived

* Impoverished

* Needy

* Marginalized

* Underrepresented

* Underserved

* Economically challenged

Informal:

* Poor

* Less fortunate

* Hard-up

* Down and out

* Struggling

* In need

More specific:

* Low-income (focuses on financial status)

* Working class (focuses on socioeconomic status)

* Minorities (focuses on lack of representation)

* Homeless (focuses on housing situation)

The best synonym to use depends on the specific context and the desired level of formality.