Found 2 items, similar to expertness.
English → English (WordNet) Definition: expertness expertness n : skillfulness by virtue of possessing special knowledge [syn: expertise]
English → English (gcide) Definition: Expertness Expertness \Ex*pert"ness\, n. Skill derived from practice; readiness; as, expertness in seamanship, or in reasoning. Syn: Facility; readiness; dexterity; adroitness; skill. See Facility. [1913 Webster]