wildcat Meaning and Definition

1. n. any small or medium-sized cat resembling the domestic cat and living in the wild

2. n. an exploratory oil well drilled in land not known to be an oil field

3. n. a cruelly rapacious person

4. s. (of a mine or oil well) drilled speculatively in an area not known to be productive

5. s. without official authorization

6. s. outside the bounds of legitimate or ethical business practices