Definition of outréness in English:

outréness

(also outreness)

noun

  • The quality of being outré; singularity; eccentricity, peculiarity.

Origin

Mid 19th century; earliest use found in John Motley (1814–1877), historian and diplomat. From outré + -ness.

Pronunciation

outréness

/ˈuːtreɪnɪs/