We have put together a list of words that are similar to LEGITIMATELY.

5 Alternative Words Similar to legitimately

1 Lawfully Adverb      Synonym Words Like Lawfully
2 Licitly Adverb      Synonym Words Like Licitly
3 Illegitimately Adverb      Antonym Words Like Illegitimately
4 Illicitly Adverb      Antonym Words Like Illicitly
5 Lawlessly Adverb      Antonym Words Like Lawlessly

5 definitions of legitimately

1 In a legitimate manner; lawfully; genuinely.
2 in a lawfully recognized manner
3 in a manner acceptable to common custom
4 In a legitimate manner; lawfully; according to law; genuinely; not falsely.
5 In a legitimate manner, properly.
We get our data from many different dictionaries across the web:
Wordnik, Wiktionary, Century, American Heritage, Gcide