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English to English adverb
| 1 |
in a manner disapproved or not allowed by custom |  | Example: He acted illegitimately when he increased the rent fourfold
source: wordnet30
| 2 |
of biological parents not married to each other | | Example: this child was born illegitimately
source: wordnet30
| 3 |
In a illegitimate manner; unlawfully. | | source: webster1913
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