| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | contributing, accompanying |
| Synonyms: | accessory, adjuvant, agreeing, ancillary, associated with, associative, attendant, attending, belonging, coefficient, coetaneous, coeval, coexistent, coincident, coincidental, collateral, complementary, concordant, concurrent, conjoined, conjoined with, connected, contemporaneous, contemporary, coordinate, corollary, coterminous, coupled with, fellow, in tempo, in time, incident, isochronal, isochronous, joint, satellite, synchronal, synchronous, synergetic, synergistic |
| Antonyms: | accidental, chance, unrelated |
| Main Entry: | ancillary |
| Part of Speech: | adjective |
| Definition: | extra; supplementary |
| Synonyms: | accessory, accompanying, additional, adjuvant, appurtenant, attendant, attending, coincident, collateral, concomitant, contributory, incident, satellite, secondary, subordinate, subservient, subsidary |
| Antonyms: | necessary, needed |
| Main Entry: | attendant |
| Part of Speech: | adjective |
| Definition: | being present or related |
| Synonyms: | accessory, accompanying, ancillary, associated, attending, coincident, concomitant, consequent, incident |
| Antonyms: | absent, detached |
| Main Entry: | circumstantial |
| Part of Speech: | adjective |
| Definition: | incidental |
| Synonyms: | amplified, coincidental, concomitant, concurrent, conjectural, contingent, detailed, environmental, fortuitous, inconclusive, indirect, inferential, presumptive, provisional, uncertain |
| Antonyms: | direct |
| Main Entry: | coincident |
| Part of Speech: | adjective |
| Definition: | concurring, happening together |
| Synonyms: | ancillary, attendant, attending, coinciding, collateral, concomitant, consonant, contemporaneous, contemporary, coordinate, correspondent, incident, satellite, simultaneous, synchronous |
| Main Entry: | collateral |
| Part of Speech: | adjective |
| Definition: | indirect, secondary |
| Synonyms: | accessory, accompanying, added, adjunctive, adjuvant, ancillary, appurtenant, attendant, auxiliary, circuitous, coincident, complementary, concomitant, concurrent, confirmatory, coordinate, corresponding, corroborative, dependent, incident, lateral, not lineal, parallel, related, roundabout, satellite, side, sub, subordinate, subservient, subsidiary, supporting, tributary, under |
| Antonyms: | chief, direct, main, primary, principal |
| Main Entry: | companion |
| Part of Speech: | noun |
| Definition: | helper, friend |
| Synonyms: | accompaniment, accomplice, aide, ally, assistant, associate, attendant, buddy, chaperon, co-worker, colleague, comate, complement, comrade, concomitant, confederate, consort, convoy, counterpart, cousin, crony, cuz, double, escort, guide, match, mate, nurse, pal, pard, partner, playmate, protector, roomie, safeguard, sidekick |
| Antonyms: | enemy, foe, foreigner, opponent, stranger |
| Main Entry: | concurrent |
| Part of Speech: | adjective |
| Definition: | simultaneous |
| Synonyms: | circumstantial, coeval, coexisting, coincident, concerted, concomitant, contemporaneous, in sync, incidental, parallel, synchronal, synchronous |
| Main Entry: | consort |
| Part of Speech: | noun |
| Definition: | associate, partner |
| Synonyms: | accompaniment, companion, concomitant, friend, husband, mate, spouse, wife |
| Antonyms: | antagonist, enemy, foe |