1. Marked by calm self-control (especially in trying circumstances); unemotional
   "stayed coolheaded in the crisis"
   - cool, nerveless

See also: composed

• plug in
• plug into
• plug-ugly
• plugboard
• plugged
• plugger
• plughole
• plum
• plum duff
• plum pudding
• plum sauce
• plum tomato
• plum tree
• plum-fruited yew
• plum-yew
• plum-yew family
• plumage
• plumaged
• plumate
• plumb
• plumb bob
• plumb level
• plumb line
• plumb rule
• plumbable