adul·ter·ine \-ltəˌrīn, -ˌrēn, -_rə̇n\adjective Etymology: Latin adulterinus, from adulterare + -inus -ine 1.: relating to or marked by adulteration : spurious < adulterine drugs > 2.: without the support of law : illegal < an adulterine guild > 3.: born of adultery < an adulterine child >