1. Not easily perturbed or excited or upset; marked by extreme calm and composure
   "unflappable in a crisis"
   - imperturbable

See also: composed

Encyclopedia: Unflappable

• polo pony
• polo shirt
• polo stick
• polo-neck
• polo-neck collar
• polonaise
• polonium
• polony
• Polska
• poltergeist
• poltroon
• poltroonery
• poly
• polyamide
• polyamory
• polyandrian
• polyandrist
• polyandrous
• polyandry
• Polyangiaceae
• Polyangium
• polyanthus
• polyarchy
• polyarteritis
• polyarteritis nodosa