legitimately
If a child is born illegitimately, their parents are not married to each other:
Peter had been born illegitimately and was brought up by his mother alone.
She was one of seven children he fathered illegitimately with Mary.
The Government claims that the schemes are used illegitimately to avoid paying tax.
The journalist admitted receiving information illegitimately from the police.

SMART Vocabulary: related words and phrases

Legal & illegal
bang to rightsidiom
bookable
bootleg
chargeable
concealed carryidiom
controverted election
criminally
illegality
improper
legitimate
licensed
licit
licitly
non-criminal
non-legal
shady
treasonable
unlawful
validity
validly

You can also find related words, phrases, and synonyms in the topics:

Parents & children

Related word