mandatory vs recipient

mandatory and recipient both are nouns.

Word	Noun	Adjective	Verb	Adverb
mandatory	Yes	Yes	No	No
recipient	Yes	No	No	No

As nouns, recipient is a hypernym of mandatory; that is, recipient is a word with a broader meaning than mandatory:

Other hypernyms of mandatory include receiver.

mandatory (noun)	recipient (noun)
a territory surrendered by Turkey or Germany after World War I and put under the tutelage of some other European power until they are able to stand by themselves	the semantic role of the animate entity that is passively involved in the happening denoted by the verb in the clause
the recipient of a mandate	a person who receives something

mandatory (adjective)	recipient (adjective)
required by rule