Adjective collateral has 4 senses
  1. collateral, indirect - descended from a common ancestor but through different lines; "cousins are collateral relatives"; "an indirect descendant of the Stuarts"
    Antonyms: lineal, direct, matrilineal, matrilinear, patrilineal, patrilinear, unilateral, unilateralist
  2. collateral, confirmative, confirming, confirmatory, corroborative, corroboratory, substantiating, substantiative, validating, validatory, verificatory, verifying - serving to support or corroborate; "collateral evidence"
    Antonym: unsupportive (indirect, via supportive)
  3. collateral - accompaniment to something else; "collateral target damage from a bombing run"
    primary (indirect, via secondary)
  4. collateral - situated or running side by side; "collateral ridges of mountains"
    perpendicular (indirect, via oblique, parallel)
    Antonym: oblique (indirect, via parallel, perpendicular)
,Noun collateral has 1 sense
  1. collateral - a security pledged for the repayment of a loan
    --1 is a kind of
    security interest
    --1 has particulars: guarantee, guaranty