The quality of being redoubtable.

Eliciting respect or fear; imposing; awe-inspiring. / (obsolete) Valiant.

A small, temporary, military fortification. / A reinforced refuge; a fort. / A place of safety or refuge.

(transitive) To fortify, to make into a stronghold.

(archaic) To dread.

(rare) To doubt again.

(rare) The return of doubt.

In a redoubtable manner.

plural of redoubt

present participle of redoubt