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1. Descended from a common ancestor but through different lines
   "cousins are collateral relatives";
   - indirect
    
2. Serving to support or corroborate
   "collateral evidence";
   - confirmative, confirming, confirmatory, corroborative, corroboratory, substantiating, substantiative, validating, validatory, verificatory, verifying
    
3. Additional but secondary; auxiliary;
    
4. Situated or running side by side
   "collateral ridges of mountains"
    
5. Occurring with or following as a consequence
   "collateral target damage from a bombing run";
   - attendant, consequent, accompanying, concomitant, incidental, ensuant, resultant, sequent

1. A security pledged for the repayment of a loan

Derived forms: collaterals

See also: parallel, related, secondary, subsequent, supportive

Type of: security interest

Antonym: lineal

Encyclopedia: Collateral