Wiveless

I’ve canvassed enough to know that it is usually the wiveless men who shout the most about the wife.

Source: wiktionary

And the widows of murdered men—not sharing that exile—accepted the wiveless men of Ades as their deliverers.

Source: wiktionary

Affluent but wiveless miners of the California gold fields advertised in eastern newspapers for wives, and many women booked passage on ships sailing round the Horn to become brides of these men.

Source: wiktionary