Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Thesaurus

undo

verb

Synonyms and Antonyms of undo

  1. 1 to deprive of courage or confidence <the sudden shriek undid the campers> Synonyms demoralize, emasculate, paralyze, unnerve, unman, unstringRelated Words debilitate, enervate, enfeeble, neuter, weaken; prostrate, sap, soften, tire, waste; frighten, intimidate, psych (out), scare, terrify, terrorize; daunt, discourage, dishearten, dismay, dispirit; craze, derange, madden, unbalance, unhinge; discompose, disquiet, disturb, faze, perturb, unsettle, upset, weird outNear Antonyms fortify, strengthen; embolden, encourage, heartenAntonyms nerve

  2. 2 to disengage the knotted parts of <undo a tangled shoelace> Synonyms unbind, untie, unfasten, unlashRelated Words unbraid, unlace; disentangle, ravel, unravel, unsnarl, untangle, unwind; loose, loosenNear Antonyms braid, interlace, interweave, lace, wind; entangle, snarl, tangleAntonyms bind, fasten, knot, lash, tie

  3. 3 to trouble the mind of; to make uneasy <the mere mention of the home invasion still had the power to undo her> Synonyms agitate, ail, alarm (also alarum), bother, concern, derail, discomfort, discompose, dismay, disquiet, distemper, distract, distress, exercise, flurry, frazzle, freak (out), fuss, hagride, perturb, disturb, unhinge, unsettle, upset, weird out, worryRelated Words aggravate, anger, annoy, bug, chafe, chivy (or chivvy), exasperate, fret, gall, get, grate, harass, harry, irk, irritate, nettle, peeve, pester, pique, put off, put out, rile, vex; bedevil, haunt, plague; abash, confound, confuse, discomfit, disconcert, discountenance, embarrass, faze, fluster, jar, mortify, nonplus, rattle, shake up; daunt, demoralize, discourage, dishearten, dispirit, unnerveNear Antonyms allay, alleviate, assuage; appease, conciliate, mollify, pacify, placate, propitiateAntonyms calm, compose, quiet, settle, soothe, tranquilize (also tranquillize)




Learn More about undo


Seen and Heard

What made you want to look up undo? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

the Celtic May Day festival

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

maudlin prompt oily angry
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ