Meaning : In a manner disapproved or not allowed by custom.
Example :
He acted illegitimately when he increased the rent fourfold.
Synonyms : illicitly
In a manner acceptable to common custom.
You cannot do this legitimately!.Meaning : Of biological parents not married to each other.
Example :
This child was born illegitimately.
Synonyms : out of wedlock
In a lawfully recognized manner.
Let's get married so our child can be born legitimately.Illegitimately meaning in Bengali (Bangla).