Antonyms of adj extramarital

1 sense of extramarital

Sense 1
adulterous, extramarital, extracurricular -- (characterized by adultery; "an adulterous relationship"; "extramarital affairs"; "the extracurricular activities of a philandering husband")

INDIRECT (VIA illicit) -> licit -- (sanctioned by custom or morality especially sexual morality; "a wife's licit love")

Similarity of adj extramarital

1 sense of extramarital

Sense 1
adulterous, extramarital, extracurricular -- (characterized by adultery; "an adulterous relationship"; "extramarital affairs"; "the extracurricular activities of a philandering husband")
       => illicit (vs. licit) -- (contrary to accepted morality (especially sexual morality) or convention; "an illicit association with his secretary")