wildcat

(s) outside the bounds of legitimate or ethical business practices
- wildcat currency issued by irresponsible banks
- wildcat stock speculation
- a wildcat airline
- wildcat life insurance schemes
(s) without official authorization
- an unauthorized strike
- wildcat work stoppage
unauthorised, unauthorized,
(s) (of a mine or oil well) drilled speculatively in an area not known to be productive
- drilling there would be strictly a wildcat operation
- a wildcat mine
- wildcat drilling
- wildcat wells

(n) an exploratory oil well drilled in land not known to be an oil field wildcat well,
(n) a cruelly rapacious person brute, beast, savage, wolf,
(n) any small or medium-sized cat resembling the domestic cat and living in the wild

wildcat well brute beast savage wolf unauthorised unauthorized

wildcat strike wildcatter wildcat well