the GNU version of the Collaborative International Dictionary of English
adj. Able; strong; valiant; redoubtable.
The Century Dictionary and Cyclopedia
Strong; brave; spirited; valiant; powerful: as, a doughty hero.
Word Usage
"Sir Stuart Wheeler is well-known as a doughty fighter against the great behemoth that is the EU and, in particular, the continued membership of the UK of that deeply corrupt entity."