accompanying (adj.)
- accessory
- accidental
- accordant
- ado
- afloat
- afoot
- associate
- attendant
- circumstantial
- coetaneous
- coeval
- coexistent
- coexisting
- coincident
- collaborative
- collateral
- collective
- collusive
- combined
- combining
- concerted
- concomitant
- concordant
- concurrent
- concurring
- conjoint
- conspiratorial
- contemporaneous
- contemporary
- conterminous
- cooperative
- coordinate
- correlative
- coterminous
- coupled
- current
- fellow
- harmonious
- incidental
- isochronal
- isochronous
- joined
- joint
- meeting
- mutual
- occasional
- occurring
- on
- ongoing
- paired
- parallel
- parasitic
- passing
- prevailing
- prevalent
- resultant
- saprophytic
- simultaneous
- symbiotic
- synchronous
- synergetic
- synergic
- synergistic
- twin
- united