THESAURUS
Deter
anticipate, avert, awe, bar, block, blunt, check, chill, cool, damp, dampen, daunt, debar, deflect, disaffect, discourage, dishearten, disincline, disinterest, dissuade, distract, divert, estop, exclude, faze, fend, fend off, forbid, foreclose, forestall, frighten, help, hinder, impede, indispose, inhibit, intimidate, keep from, keep off, obstruct, obviate, overawe, preclude, prevent, prohibit, put off, quench, repel, restrain, rule out, save, scare, scare off, shake, shut out, stave off, stop, turn aside, turn away, turn from, turn off, ward, ward off, wean from
ROGET THESAURUS
Deter
Dissuasion
VB
dissuade, dehort, cry out against, remonstrate, expostulate, warn, contraindicate, disincline, indispose, shake, stagger, dispirit, discourage, dishearten, deter, repress, hold back, keep back, render averse, repel, turn aside, wean from, act as a drag, throw cold water on, damp, cool, chill, blunt, calm, quiet, quench, deprecate, disenchant, disillusion, deflate, take down a peg, pop one's balloon, prick one's balloon, burst one's bubble, disabuse (correction).
Fear
VB
fear, stand in awe of, be afraid, have qualms, apprehend, sit upon thorns, eye askance, distrust, hesitate, falter, funk, cower, crouch, skulk, let 'I dare not' wait upon 'I would' take fright, take alarm, start, wince, flinch, shy, shrink, fly, tremble, shake, shiver, shiver in one's shoes, shudder, flutter, shake like an aspen leaf, tremble like an aspen leaf, tremble all over, quake, quaver, quiver, quail, grow pale, turn pale, blench, stand aghast, not dare to say one's soul is one's own, inspire fear, excite fear, inspire awe, excite awe, raise apprehensions, be in a daze, bulldoze, faze, feeze, give an alarm, raise an alarm, sound an alarm, alarm, startle, scare, cry 'wolf', disquiet, dismay, fright, frighten, terrify, astound, fright from one's propriety, fright out of one's senses, fright out of one's wits, fright out of one's seven senses, awe, strike all of a heap, strike an awe into, strike terror, harrow up the soul, appall, unman, petrify, horrify, pile on the agony, make one's flesh creep, make one's hair stand on end, make one's blood run cold, make one's teeth chatter, take away one's breath, stop one's breath, make one tremble, haunt, prey on the mind, weigh on the mind, put in fear, put in bodily fear, terrorize, intimidate, cow, daunt, overawe, abash, deter, discourage, browbeat, bully, threaten.