1. Inspiring fear
   "a tougher and more redoubtable adversary than the heel-clicking, jackbooted fanatic"
   - formidable, unnerving, doubtable [archaic] 
2. Worthy of respect or honour
   "born of a redoubtable family"

See also: alarming, reputable

• wearer
• wearied
• weariless
• wearily
• weariness
• wearing
• wearing apparel
• wearing away
• wearisome
• wearisomeness
• weary
• Weary Willie
• wearying
• weasand
• weasel
• weasel out
• weasel word
• weasel-worded
• weather
• weather bureau
• weather chart
• weather condition
• weather deck
• weather eye
• weather forecast