Open English Wordnet
Nouns
Adjectives
(a)collateral, indirectdescended from a common ancestor but through different lines“cousins are collateral relatives”, “an indirect descendant of the Stuarts”
(s)collateral, confirmative, confirming, confirmatory, corroborative, corroboratory, substantiating, substantiative, validating, validatory, verificatory, verifyingserving to support or corroborate“collateral evidence”
(s)attendant, consequent, accompanying, concomitant, incidental, ensuant, resultant, sequent, collateraloccurring with or following as a consequence“an excessive growth of bureaucracy, with attendant problems”, “snags incidental to the changeover in management”, “attendant circumstances”, “the period of tension and consequent need for military preparedness”, “the ensuant response to his appeal”, “the resultant savings were considerable”, “collateral target damage from a bombing run”