glibbest

Example:His flippant remarks during the meeting were not taken seriously by his colleagues.

Definition:Lack of seriousness or due consideration, especially of matters requiring gravity or respect.

Example:The cynical politician was known for giving glibbest answers to complex issues.

Definition:Lacking or showing a lack of faith in human goodness, integrity, or truth; distrustful and cynical.

Example:The glibbest and conceited person in the room was the CEO of the company.

Definition:Having or showing an unjustified sense of self-importance or self-esteem, so as to offend other people.