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.
- bottlenose dolphin
- bottler
- bottle tree
- bottom
- bottomer
- bottom feeder
- bottom feeding
- bottom-feeding
- bottom fish
- bottom fishing
- bottom lambda baryon
- bottomland
- bottomless
- bottomlessly
- bottom line
- bottom-line
- bottommost
- bottom out
- bottom quark
- bottom round
- bottom-up
- botulin
- botulinal
- botulinum
- botulinus