We don't have synonyms for lippier yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are rippier, tippier and lippies.
(adj) :
(informal) Having a tendency to talk back in a cheeky or impertinent manner.
(adj) :
(informal) Having prominent lips.
(n) :
(uncountable) Lip gloss or lipstick; (countable) a stick of this product.
(n) :
(Scotland, historical) An old dry measure amounting to one quarter of a peck (for goods sold by weight, 1¾ pounds or about four-fifths of a kilogram); also, a container of that capacity.
(adj) :
(informal) Having a tendency to talk back in a cheeky or impertinent manner.
(adj) :
(informal) Having prominent lips.
(n) :
(uncountable) Lip gloss or lipstick; (countable) a stick of this product.
(n) :
(Scotland, historical) An old dry measure amounting to one quarter of a peck (for goods sold by weight, 1¾ pounds or about four-fifths of a kilogram); also, a container of that capacity.