1) Adult male 2) Bereaved husband 3) Dating scene returnee 4) Man who has lost his wife 5) Prince Rainier is one 6) Surviving male spouse 7) Widowman 1) Widowman 
• (n.) A man who has lost his wife by death, and has not married again.
A man who was married but whose wife has died. 
(n) A widower is a man whose wife was dead during the tenancy of their married life and he continue to be unmarried after her death. Two conditions make a person to be legally treated as widoer.1) There exists a legally enforceable marriage relationship at the time of wife's death 2)He has not re-married.
Wid'ow·er noun A man who has lost his wife by death, and has not married again. Shak. 
A man whose wife is dead. A widower has a right to administer to his wife's separate estate, and as her administrator to collect debts due to her, generally for his own use.
A man whose wife has died.
A man whose wife died while he was married to her and and who has not remarried.
[n] - a man whose wife is dead especially one who has not remarried
A man who was married but whose wife has died.
widowman noun a man whose wife is dead especially one who has not remarried