redoubtableadjective · Level 1 SAT1formidable, commanding respectThe redoubtable advocate had never lost a civil rights case and showed no signs of slowing down.ModuleLevel 1Registerargument, common, toneCollectionCollection 037SAT Core planAlso in Collection 037formidable, discreet, odious, morose, torrid, immutable, pugnacious, juvenile and 1 more