n.
Pronunciation: - ' ji-t ə -m ə t
Function: adjective
Date: 1536
1 : not recognized as lawful offspring specifically : born of parents not married to each other
2 : not rightly deduced or inferred : ILLOGICAL
3 : departing from the regular : ERRATIC
4 a : not sanctioned by law : ILLEGAL b : not authorized by good usage c of a taxon : published but not in accordance with the rules of the relevant international code
– il · le · git · i · mate · ly adverb