| cabalistic |
| coacting(adjective, joint, harmonious, united, shared) |
| coactive(adjective, joint, harmonious, united, shared) |
| coadjuvant(adjective, joint, harmonious, united, shared) |
| coefficient(adjective, common, joint, collateral, harmonious) |
| collaborating(adjective, joint, harmonious, united, shared) |
| collaborative(adjective, joint, harmonious, united, shared) |
| collective(adjective, joint, harmonious, united, shared) |
| collectively(adverb, together, jointly, accordingly, harmoniously) |
| collegial(adjective, joint, harmonious, united, shared) |
| collusive(adjective, joint, harmonious, united, shared) |
| combining(adjective, joint, harmonious, united, shared) |
| common(adjective, joint, harmonious, united, shared) |
| concerted(adjective, joint, harmonious, united, shared) |
| concurrently(adverb, together, jointly, collectively, accordingly) |
| concurring(adjective, joint, harmonious, united, shared) |
| confederated |
| conjointly(adverb, together, jointly, collectively, accordingly) |
| conspiratorial |
| cooperative(adjective, joint, shared, unified, reaching) |