Definition of redoubtable in US English:

redoubtable

adjective

humorous
  • (of a person) formidable, especially as an opponent.

    ‘he was a redoubtable debater’
    • ‘The third station is Verbena, once owned by Bo's redoubtable grandmother, and which Bo intends to reclaim.’
    • ‘Three points down after seven games, he pulled up to equality, only to see his redoubtable opponent draw away again.’
    • ‘Only the redoubtable Sam Smyth succeeded where all others failed.’
    • ‘Then, in 1988, he attracted his own ITV series, written by the redoubtable Keith Waterhouse.’
    • ‘And what about his equation with his redoubtable father?’
    • ‘It was his redoubtable mother Jan who brought him and his elder sister up alone after his father ran off when he was three, who nurtured his talent for showing off, singing and performing in the pub she ran.’
    • ‘The menu, which is undergoing continuous additions, begins with a potted history of the redoubtable lady, Queen Victoria herself.’
    • ‘In 1926, a redoubtable woman called Miss Elsie Wagg laid the foundations for the National Gardens Scheme.’
    • ‘A sportsman to his fingertips, the redoubtable John Joe has left many of us with some tremendous memories of his hurling and footballing feats.’
    • ‘It is the inspiration for the story of a redoubtable guy who has seen an injustice and has been dedicating a part of his life to correcting it.’
    • ‘Yet the redoubtable pensioner not only saved herself, but also rescued a band of 25 Jewish children from almost certain death.’
    • ‘This poorly regarded army produced some outstanding leaders and redoubtable soldiers, and several developments had long-term importance.’
    • ‘Despite his odd profession, and his generally humane views, he is as tough and as passionate as Caesar, and a redoubtable adversary to him.’
    • ‘‘If that was the case then they clearly reckoned without Mrs Hiley, a redoubtable lady who has stuck to her guns throughout,’ he said.’
    • ‘Not until Richard usurped the throne in 1483 did Henry's prospects brighten, his cause sustained largely by his redoubtable mother.’
    • ‘The redoubtable chefs have prepared an expansive range of vegetarian and non-vegetarian dishes to satisfy the true gourmets.’
    • ‘But, seriously, if any player can match talent with the redoubtable Williams this year, it's Rush.’
    • ‘Border's redoubtable team had all but been humbled.’
    • ‘Sure, they are redoubtable opponents, but brawny, one-dimensional teams deficient in natural ability will not seriously challenge the world's best.’
    • ‘The name may not be immediately familiar to you, but Nesbitt was one of British television's most redoubtable character actors throughout the 1960s.’
    formidable, awe-inspiring, fearsome, daunting, alarming
    View synonyms

Origin

Late Middle English: from Old French redoutable, from redouter ‘to fear’, from re- (expressing intensive force) + douter ‘to doubt’.

Pronunciation

redoubtable

/rəˈdoudəb(ə)l//rəˈdaʊdəb(ə)l/