Wiktionary
gumless
a. 1 Without gum. 2 Without gums (part of the mouth).
Usage examples of "gumless".
Long strands of greyish hair hung loose from the tan-coloured head and yellowed dentures lay on the shelf at the entrance of the open mouth, this itself guarded by the few remaining teeth, exposed and gumless, like crooked tombstones before a black vault.