self-sufficiency

adjective

1. able to supply one’s own or its own needs without external assistance: The nation grows enough grain to be self-sufficient.
2. having extreme confidence in one’s own resources, powers, etc.: He was self-sufficient, and always reminded you of it.

adjective

1. able to provide for or support oneself without the help of others

n.1620s, originally an attribute of God (translating Greek autakreia), from self- + sufficiency. Of mortals, self-sufficient “able to supply one’s own needs” is recorded from 1580s. adj.“able to supply one’s own needs,” 1580s, from self- + sufficient. Related: Self-sufficiently.