- wildcat - 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"
Antonym: sound (indirect, via unsound)
- unauthorized, unauthorised, wildcat - without official authorization; "an unauthorized strike"; "wildcat work stoppage"
Antonym: official (indirect, via unofficial)
- wildcat - (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"
Antonyms: nonexploratory, nonexplorative, unexploratory, unexplorative (indirect, via exploratory)
- wildcat well, wildcat - an exploratory oil well drilled in land not known to be an oil field
--1 is a kind of oil well, oiler
- beast, wolf, savage, brute, wildcat - a cruelly rapacious person
--2 is a kind of attacker, aggressor, assailant, assaulter
- wildcat - any small or medium-sized cat resembling the domestic cat and living in the wild
--3 is a kind of cat, true cat
--3 is a member of Felis, genus Felis
--3 has particulars: