Formidable

ahd-5
  • adjective. Arousing fear, dread, or alarm.
  • adjective. Inspiring awe, admiration, or wonder.
  • adjective. Difficult to undertake, surmount, or defeat.
  • The Century Dictionary and Cyclopedia
  • Exciting or fitted to excite fear or apprehension; hard to deal with; difficult to overcome, perform, or the like: applied to persons or things possessing such strength, power, or capability, or presenting such obstacles to action or progress, as to discourage effort or inspire dread of failure.
  • Synonyms Deterrent, discouraging, fearful, appalling, redoubtable.
  • the GNU version of the Collaborative International Dictionary of English
  • adjective. Exciting fear or apprehension; impressing dread; adapted to excite fear and deter from approach, encounter, or undertaking; alarming.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • adjective. causing fear, dread, awe or admiration as a result of size, strength, or some other impressive quality; commanding respect
  • adjective. difficult to defeat or overcome
  • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • adjective. extremely impressive in strength or excellence
  • adjective. inspiring fear
  • Word Usage
    "From this latter practice arose their name — CONDOTTIERI; a term formidable all over Italy, for a period, which concluded in the earlier part of the seventeenth century, but of which it is not so easy to ascertain the commencement."