1. Provoking fear or terror
   - chilling, scarey [non-standard], scary, shivery, shuddery

See also: alarming

• porte-cochère
• portend
• portent
• portentous
• portentously
• porter
• porter's beer
• porterage
• porterhouse
• porterhouse steak
• portfolio
• porthole
• Portia
• portia tree
• portico
• porticoed
• portion
• portion out
• portière
• Portland
• Portland cement
• portliness
• portly
• portmanteau
• portmanteau word