I. collateral adjective
1.
Synonyms: concomitant , accompanying, ancillary, attendant, attending, coincident, incident, satellite
2.
Synonyms: indirect 1, circuitous, circular, oblique, roundabout
3.
Synonyms: corroborative , adminicular, confirmative, confirmatory, corroboratory, verificatory
4.
Synonyms: subordinate , dependent, secondary, sub, subject, tributary, under
Related Word: allied, cognate, kindred, related; complementary, corresponding, reciprocal
Contrasted words: major, prominent
5.
Synonyms: auxiliary , accessory, adjuvant, ancillary, appurtenant, contributory, subservient, subsidiary
II. ||collateral noun
Synonyms: refuse , debris, garbage, junk, kelter, litter, offal, outsweepings, riffraff, rubbish