Length ranks your synonyms based on character count.
Informal words should be reserved for casual, colloquial communication.
More words related to know-it-all
adj. having exaggerated self-opinion
- high and mighty
- on an ego trip
noun. person who talks boastingly
adj. self-assured, full of oneself
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.Cite This Source