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




Synonyms and Antonyms of complication

  1. 1 something that makes a situation more complicated or difficult <the food allergies of the guests were just another complication for the couple trying to plan their wedding reception> Synonyms complexity, complicacy, convolution, difficulty, intricacy Related Words aftereffect, ramification, side effect (also side reaction); subtlety, technicality; annoyance, bitch, bother, headache, inconvenience, matter, trouble Phrases fly in the ointment

  2. 2 an abnormal state that disrupts a plant's or animal's normal bodily functioning <complications set in after the surgery> Synonyms affection, ail, ailment, bug, complaint, disease, condition, disorder, distemper, distemperature, fever, ill, illness, infirmity, malady, sickness, troubleRelated Words contagion, contagious disease; contagium, infection; attack, bout, fit, spell; debility, decrepitude, feebleness, frailness, lameness, sickliness, unhealthiness, unsoundness, unwellness, weakness; malaise, matter, pip; epidemic, pest, pestilence, plagueNear Antonyms fitness, healthiness, heartiness, robustness, soundness, wholeness, wholesomeness; fettle, shapeAntonyms health, wellness

  3. 3 the state or quality of having many interrelated parts or aspects <a problem of such irreducible complication as to defy any easy solution> Synonyms complexness, complicacy, complicatedness, complexity, elaborateness, intricacy, intricateness, involution, knottiness, sophisticationRelated Words diversity, heterogeneity, heterogeneousness, multifariousness; impenetrability, incomprehensibility, inexplicabilityNear Antonyms simplification; homogeneity, uniformityAntonyms plainness, simpleness, simplicity

Seen and Heard

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


a jerking and twitching of the body

Get Word of the Day daily email!