motherless adjective 3adverb 1forms 2 adjective3 •Without a (living) mother. •(figurative) Without a history or predecessor.So in an inclusive act of recognition, here's our goopy take on this motherless dish—a mash-up of all your food-court chickens, be they sweet 'n' sour, sesame[.] — 2015 •Without mother (mucilaginous substance in fermenting liquid).A number of things along the way, such as temperature fluctuations, bacteria, and dust in the air, can derail and ruin a motherless vinegar. But if you use a mother, [...] — 2014 adverb1 •(Australia, slang) very, completely (especially in reference to drunkenness)At the wake, held at her old pub, Brenda watched as her sisters, brothers-in-law and several nieces and nephews got motherless drunk, then summoned a taxi to take them all home in two separate trips. — 2009 formsmore motherless · most motherless