DictionarycollateralSecondary or accompanying
adjective / noun

collateral

Extending alongside a main line rather than directly within it.

The factory shutdown causes collateral damage to nearby small businesses.

Etymology

Latin con- and latus combine the ideas of togetherness and side. Collateral describes something running beside the main line, including a related branch that does not lie directly within it.

More examples

  • Cousins are collateral relatives, not direct ancestors or descendants.
  • Cleaner air is a collateral benefit of reduced traffic.
  • Small collaterals carry blood around the blocked artery.

Forms

collateral · collaterals

Similar words

secondary
Emphasizes lower importance or rank, not a parallel relationship.
accompanying
Means present alongside something, without implying a side effect.
lateral
Describes sideways position or movement, not necessarily secondary status.