n.1.A disdainful manner.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
The Pakistan government must deal with this without any of the cavalierness it has recently shown.
You can see the consumer values in our cavalierness toward the marriage commitment.
`He's responsible for so much of the cavalierness in my music.