The Collaborative International Dictionary of English v.0.48:

Self-reliance \Self`-re*li"ance\, n.
   Reliance on one's own powers or judgment; self-trust.
   [1913 Webster]

WordNet (r) 3.0 (2006):

self-reliance
    n 1: personal independence [syn: autonomy, self-direction,
         self-reliance, self-sufficiency]

Moby Thesaurus II by Grady Ward, 1.0:

57 Moby Thesaurus words for "self-reliance":
   Declaration of Independence, arrogance, assurance, assuredness,
   autarchy, autarky, autonomy, belief, boastfulness, certitude,
   cocksureness, conceit, confidence, confidentness, conviction,
   courage, face, faith, haughtiness, home rule, hubris, independence,
   individualism, inner-direction, overconfidence, oversureness,
   overweening, overweeningness, pardonable pride, poise, pomposity,
   positiveness, pride, pridefulness, proudness, purse-pride,
   rugged individualism, security, self-assurance, self-confidence,
   self-consequence, self-containment, self-determination,
   self-direction, self-esteem, self-government, self-importance,
   self-respect, self-sufficiency, settled belief, stiff-necked pride,
   stiff-neckedness, subjective certainty, sureness, surety, trust,
   vanity