mutual (adj.)
- accessory
- accompanying
- attendant
- changeable
- coincident
- collaborative
- collateral
- collective
- collectivist
- collectivistic
- collusive
- combined
- commensal
- common
- communal
- communist
- communistic
- commutable
- commutative
- complementary
- concerted
- concomitant
- concordant
- concurrent
- concurring
- conjoint
- conjunct
- connected
- conniving
- convertible
- cooperative
- correlative
- coupled
- ecumenic
- equal
- equivalent
- even
- exchanged
- fellow
- general
- harmonious
- harmonized
- interactive
- interchangeable
- joined
- joint
- noncompetitive
- paired
- parallel
- permutable
- popular
- public
- reciprocal
- reciprocating
- reciprocative
- related
- respective
- retaliatory
- returnable
- shared
- simultaneous
- social
- socialistic
- societal
- standard
- symbiotic
- synergetic
- synergic
- synergistic
- transposed
- twin
- two-way
- uncompetitive
- united
Forever, Fortune, wilt thou prove
An unrelenting foe to love;
And when we meet a mutual heart,
Come in between and bid us part?
