Definition of perilous in US English:

perilous

adjective

  • 1Full of danger or risk.

    ‘a perilous journey south’
    • ‘I thus embark on a perilous undertaking, knowing full well that I risk the wrath of both women and men.’
    • ‘During the first two seasons, creators treated even the most perilous situations with a tongue-in-cheek attitude.’
    • ‘Yet while each took politically perilous lead roles on controversial issues, both managed to win new four-year terms.’
    • ‘To dismiss and to ignore this further issue as an irrelevancy is absolutely perilous.’
    • ‘If life in politics is precarious, it seems to be particularly perilous for those who are close to him.’
    • ‘If they did not, the situation may be even more perilous.’
    • ‘He does just that and embarks on the most perilous journey of his life.’
    • ‘The situation was extremely perilous and the patrol was in danger of being wiped out by the heavy crossfire.’
    • ‘One minute he would be home, the next gone on a perilous mission.’
    • ‘For mothers and children, the situation is even more perilous.’
    • ‘But over the past few days, the local fishermen have proved as perilous as the weather conditions.’
    • ‘Multilayered clouds, low ceilings, winter icing, fog and high winds make air-to-ground engagements perilous among mountain peaks.’
    • ‘But when the distances are longer and the borders tougher, the journeys become much more perilous.’
    • ‘Despite the government's policies, many more people are about to undertake these perilous voyages.’
    • ‘He had immediately made the perilous journey - just to see to my funeral!’
    • ‘The defender, recognizing his perilous position, then forces the space open.’
    • ‘It was during this perilous time of greed and destruction that a prophecy was made.’
    • ‘The travel back wasn't nearly as perilous as the travel into the forest.’
    • ‘But failure to create a viable land settlement was politically perilous.’
    • ‘After a while, the trio finally got underway and started their perilous journey.’
    dangerous, fraught with danger, hazardous, risky, unsafe, treacherous
    View synonyms
    1. 1.1 Exposed to imminent risk of disaster or ruin.
      ‘the economy is in a perilous state’
      • ‘His financial state is also said to be increasingly perilous.’
      • ‘We are appalled at the perilous state of the farming and fishing industries.’
      • ‘The prospect of mass destruction made real the perilous state of western civilization.’
      dangerous, risky, hazardous, precarious, life-threatening, high-risk, treacherous, insecure, unsound, vulnerable, exposed, defenceless
      View synonyms

Origin

Middle English: from Old French perillous, from Latin periculosus, from periculum ‘danger’ (see peril).

Pronunciation

perilous

/ˈpɛrələs//ˈperələs/