Faulty

//ˈfɔlti// adj

adj ·Common ·High school level

Definitions

Adjective
  1. 1
    Having or displaying faults; not perfect; not adequate or acceptable.

    "They replaced the faulty wiring and it has worked fine ever since."

  2. 2
    At fault, to blame; guilty. obsolete

    "Her faultie Handmayd, which that bale did breede, / Confest, how Philemon her wrought to chaunge her weede."

Adjective
  1. 1
    characterized by errors; not agreeing with a model or not following established rules wordnet
  2. 2
    having a defect wordnet

Example

More examples

"The most perfidious way of harming a cause consists of defending it deliberately with faulty arguments."

Etymology

From fault + -y.

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.