ultroneity

plural ultroneities

1. archaicuncountableThe quality of being ultroneous.

   Notwithstanding that admonition, they do choose to answer; and, in so doing, they evince ultroneity to a degree that is highly suspicious.

   1901, John Rankine, The Scots Revised Reports: Court of Session, Second Series

   1 more example

   […] but it is now held that the mere fact of the ultroneity of a witness, i.e. his offering his testimony without citation, is not of itself a barrier to his admissibility.

   1851, James George Wood, The Law of Libel: a Treatise on the Forms of Judicial Procedure in the Courts of the Church of Scotland

2. archaiccountableUltroneous behaviour.