bereaved vs grief-stricken

bereaved is a noun but grief-stricken is not a noun.

Word	Noun	Adjective	Verb	Adverb
bereaved	Yes	Yes	No	No
grief-stricken	No	Yes	No	No

As adjectives, bereaved and grief-stricken are synonyms defined as:

Other synonyms of bereaved include bereft, grieving, mourning, sorrowing.

bereaved (noun)	grief-stricken (noun)
a person who has suffered the death of someone they loved

bereaved (adjective)	grief-stricken (adjective)
sorrowful through loss or deprivation	sorrowful through loss or deprivation