THESAURUS
shock absorber
alleviative, alleviator, anodyne, assuager, balm, calmative, cushion, dolorifuge, lenitive, mitigator, moderator, modulator, mollifier, pacificator, pacifier, palliative, peacemaker, restraining hand, salve, sedative, soother, soothing syrup, stabilizer, temperer, tranquilizer, wiser head