temerarious

"Temerarious" came to him as naturally as to Sir Thomas Browne.

That may have been temerarious, since building material of perfect quality is required when chances are taken.

The Master of the Horse was a young officer of a brave and even temerarious disposition.

It seems as though in all that he is doing there is nothing temerarious except the enterprise itself.

He was suspended from his priestly functions, dressed as a layman, and was temerarious enough to criticise the Syllabus.