toothly adjective 2adverb 1forms 4 adjective2 •Of or pertaining to teeth; dental.For, firstly, the membership of these societies is limited; arid "toothly," as the colored preacher said, one blackball will keep out any one. — 1907 •Toothy.'I see you're admiring our decor,' the man said with a toothly smile, and Paresh noticed that his canines bit wolfishly into his thick mulberry lip. — 1997 adverb1 •In a manner regarding teeth; dentally.Toothly speaking then — it pays to stay savage. There is evidence too, that civilizations long before ours felt the stress of dental cares. — 1934 formsmore toothly · toothlier · most toothly · toothliest