Synonyms for Wildcat:

adj.

illegal (adjective)
unsecured, unsafe, illegitimate, speculative, risky.

n.

alley cat, Lynx, jaguar, big cat, bobcat, cat, feline, cougar, mountain lion, leopard. eccentric, nutjob, oddity, lunatic, madman, madwoman, oddball, maniac, headcase, space cadet. artifact (noun)
wildcat well.
cat (noun)
feline.
large cat (noun)
feline, Lynx, bobcat.
wildcat (noun)
explorative, savage, wolf, unsound, unofficial, unauthorized, exploratory, brute, beast, unauthorised, wildcat well.

Other synonyms:

cat. Other relevant words:
feline, madman, lunatic, speculative, bobcat, jaguar, illegitimate, madwoman, unsecured, oddball, oddity, eccentric, Lynx, cat, cougar, leopard, unsafe, maniac, risky, headcase, nutjob, mountain lion.

Usage examples for wildcat

  1. " He's like a wildcat to- night," said the duke in an aside to the little Frenchman, referring to his lordship. – Master Tales of Mystery, Volume 3 by Collected and Arranged by Francis J. Reynolds
  2. He measured him up and down, saw that he was a fighting wildcat in spite of his size, and decided to back out. – Gunman's Reckoning by Max Brand
  3. My husband had converted the Louisville goods into one panther, one deer, two bears, and a roll of " wildcat money. – Half a Century by Jane Grey Cannon Swisshelm