glib

/ɡlɪb/
adjective
  1. Speaking easily and smoothly, but in a way that seems insincere or not carefully thought out.
    • His glib apology sounded rehearsed and empty.
    • She was known for her glib remarks, which often annoyed her coworkers.
    • The salesman gave a glib answer that didn't really address my concerns.
  2. Done or said without enough thought or effort, often to avoid dealing with something serious.
    • The article was full of glib generalizations about teenagers.
    • It's easy to make glib comments about poverty when you've never experienced it.
    • The politician offered only glib solutions to a very complex problem.