an expert is a form of:

Frivolity



noun — Plural: Frivolities
1.
(Quality or state of being frivolous, frivolous act) waste time in frivolity ការចូលចិត្ដតែលេងឥតបានការ, frivolity of his comment ភាពឥតបានការ
2.
(ច្បាប់) ភាពឥតបានការ, មិនពេញលក្ខណៈច្បាប់
ENGLISH MEANING
noun — Plural: Frivolities
1.
The condition or quality of being frivolous; also, acts or habits of trifling; unbecoming levity of disposition.