Synonyms of the word

foolishness

• n. (uncountable) The state of being foolish.
• n. (countable) A thing or event that is foolish, or an absurdity.

craziness

• n. (uncountable) The state of being crazy; madness; derangement.
• n. (archaic, uncountable) The state of being broken down or weakened.
• n. (countable) The result or product of being crazy.

error

• n. (uncountable) The state, quality, or condition of being wrong.
• n. (countable) A mistake; an accidental wrong action or a false statement not made deliberately.
• n. (computing, countable) A failure to complete a task, usually involving a premature termination.
• n. (statistics, countable) The difference between a measured or calculated value and a true one.
• n. (baseball, countable) A play which is scored as having been made incorrectly.
• n. (appellate law, uncountable) One or more mistakes in a trial that could be grounds for review of the judgement.
• n. Any alteration in the DNA chemical structure occurring during DNA replication, recombination or repairing.
• v. (computing) To function improperly due to an error, especially accompanied by error message.
• v. (telecommunications) To show or contain an error or fault.
• v. (nonstandard) To err.

fault

• n. A defect; something that detracts from perfection.
• n. A mistake or error.
• n. A weakness of character; a failing.
• n. A minor offense.
• n. Blame; the responsibility for a mistake.
• n. (seismology) A fracture in a rock formation causing a discontinuity.
• n. (mining) In coal seams, coal rendered worthless by impurities in the seam.
• n. (tennis) An illegal serve.
• n. (electrical) An abnormal connection in a circuit.
• n. (obsolete) want; lack.
• n. (hunting) A lost scent; act of losing the scent.
• v. (transitive) To criticize, blame or find fault with something or someone.
• v. (intransitive, geology) To fracture.
• v. (intransitive) To commit a mistake or error.
• v. (intransitive, computing) To undergo a page fault.

folly

• n. Foolishness.
• n. Thoughtless action resulting in tragic consequence.
• n. A fanciful building built for purely ornamental reasons.

imbecility

• n. The quality of being imbecile; weakness; feebleness, especially of mind.
• n. Something imbecilic; a stupid action, behaviour, etc.

madness

• n. The state of being mad; insanity; mental disease.
• n. rash folly.

mistake

• n. An error; a blunder.
• n. (baseball) A pitch which was intended to be pitched in a hard-to-hit location, but instead ends up in…
• v. (transitive) To understand wrongly, taking one thing for another, or someone for someone else.
• v. (intransitive) To commit an unintentional error; to do or think something wrong.
• v. (obsolete, rare) To take or choose wrongly.

stupidity

• n. (uncountable) The property of being stupid.
• n. (countable) An act that is stupid.

trait

• n. an identifying characteristic, habit or trend.
• n. (object-oriented programming) An uninstantiable collection of methods that provides functionality to a…

unwiseness

• n. The quality of being unwise.