subreptive
/səˈbrɛptɪv/adjective
1Deriving from, involving, or characterized by misrepresentation or suppression of the truth; false, misleading.
2 Philosophy. In Kantian philosophy: characterized by or involving subreption.
Origin
Late 16th century. From post-classical Latin subreptivus secret, clandestine from classical Latin subrept-, past participial stem of subripere + -īvus.