Il·le·git·i·mate·ly adv. In a illegitimate manner; unlawfully.
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illegitimately
adv 1: in a manner disapproved or not allowed by custom; "He acted
illegitimately when he increased the rent fourfold"
[syn: illicitly] [ant: legitimately, legitimately]
2: of biological parents not married to each other; "this child
was born illegitimately" [syn: out of wedlock] [ant: legitimately]