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