adjective.Cautious, hesitant, or nervous about something; having reservations or concerns.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
openly distrustful and unwilling to confide
Word Usage
"Yet Republicans remain leery of the growing Democratic push for a second economic stimulus program to be considered in September, worried that Democrats are trying to corner them with a politically appealing proposal right before the elections."