Underprivileged means having fewer advantages than most people. Underprivileged children, an underprivileged background, help the underprivileged.
The word has fallen out of favour because it compares people to a norm and describes them by what they lack. Disadvantaged is the current term, though it does much the same thing.
1adjectiveunderprivilegedHaving fewer advantages than most people.
“The charity runs free summer camps for underprivileged children from the city.”
underprivileged is a state.
Also accepted in games: disadvantaged
From under- + privileged.
Etymology from Wiktionary, CC BY-SA