self-effacing (adj.)

• altruistic
• backward
• bashful
• committed
• consecrated
• dedicated
• deprecative
• deprecatory
• devoted
• diffident
• disinterested
• humble
• modest
• retiring
• sacrificing
• self-abnegating
• self-denying
• self-deprecating
• self-forgetful
• self-sacrificing
• selfless
• shy
• timid
• unacquisitive
• unassertive
• unassured
• unpretentious
• unselfish