1
basal
1
base
1
bastard child
1
bastardize
1
bastardly
1
black-market
1
black market
1
blameworthy
1
brummagem
1
catchpenny
1
chargeable
1
cloak-and-dagger(hidden, sly, fraudulent)
1
closet(hidden, sly, fraudulent)
1
cocksucker
1
colored
1
contrary to law(expression, idiom)
1
costing an arm and a leg(expression, adjective, idiom, extreme, improper)
1
counterfeited
1
dear(adjective, unreasonable, extreme, improper, stiff)
1
diabolic
11 years ago|17k views|share |citing 
APASmart Define. (2015). illegitimate thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/illegitimate/thesaurus/synonyms
ChicagoSmart Define. 2015. "illegitimate thesaurus" https://smartdefine.org/illegitimate/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, illegitimate thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/illegitimate/thesaurus/synonyms>.
MLASmart Define. "illegitimate thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/illegitimate/thesaurus/synonyms>