op·por·tun·ist 
(ŏp′ər-tnĭst, -ty-)
(ŏp′ər-tnĭst, -ty-)n.
One who takes advantage of any opportunity to achieve an end, often with no regard for principles or consequences.
op′por·tunism n.
- tetrahedrite
- tetrahedron
- tetrahydrocannabinol
- tetrahydrofuran
- tetrahydroxy
- tetralogy
- tetralogy of Fallot
- tetramer
- tetrameric
- tetramerous
- tetramery
- tetrameter
- tetraplegia
- tetraplegic
- tetraploid
- tetraploidy
- tetrapod
- tetrarch
- tetrarchate
- tetrarchic
- tetrarchy
- tetrasporangium
- tetraspore
- tetrasporic
- tetratomic