frightened — thrown into a fright; afraid; scared; terrified: a frightened child cowering in the corner.
heightened — to increase the height of; make higher.
lightened — to become less severe, stringent, or harsh; ease up: Border inspections have lightened recently.
Four-or-more syllable rhymes
unenlightened — to give intellectual or spiritual light to; instruct; impart knowledge to: We hope the results of our research will enlighten our colleagues.
