1. Serving to support or corroborate
   - collateral, confirmative, confirming, confirmatory, corroborative, substantiating, substantiative, validating, validatory, verificatory, verifying

See also: corroborate, supportive

• self-indulgently
• self-inflicted
• self-insurance
• self-interest
• self-interested
• self-involved
• self-justification
• self-knowledge
• self-limited
• self-loader
• self-loading
• self-locking
• self-love
• self-loving
• self-luminous
• self-made
• self-mortification
• self-moving
• self-opinionated
• self-organisation
• self-organization
• self-perpetuating
• self-pity
• self-pitying
• self-pollinated