The Collaborative International Dictionary
better-known
better-known \better-known\ adj. prenom. more familiar or renowned than the other of two. Antonym of lesser-known. the better known book of the two
Syn: better known(predicate).
Wiktionary
better-known
a. (en-comparativewell-known)
WordNet
better-known
adj. more familiar or renowned than the other of two; "the better-known book of the two"