faultiest
Having most defects
Faultiest is the superlative form of faulty, meaning having the most defects, errors, or imperfections among those compared: Of all the appliances we tested, this model proved faultiest.
It applies to reasoning, equipment, memory, or anything subject to malfunction or error.
Operating incorrectly or failing
- brokenDamaged beyond function
- dysfunctionalNot operating properly
- deficientHaving too little
- substandardBelow required quality
shoddy · bungled · botched · glitchy · buggy · flawed · inoperative · nonfunctional
Having visible defects
- imperfectHaving flaws or faults
- marredDamaged or disfigured
- tarnishedOxidized and discolored
- damagedMade worse by injury
impaired · disfigured · scarred · stained · degraded · subpar · inferior · second-rate
Having surface fractures
- crumblingBreaking down gradually
- decayedBroken down organically
- decrepitWorn by age
- dilapidatedRuined through neglect
disintegrating · rickety · shaky · teetering · tottering · unsteady · wobbly · brittle
Not consistently trustworthy
- untrustworthyNot deserving of confidence
- inconsistentLacking steady uniformity
- erraticLacking regularity or consistency
- unpredictableCannot be anticipated
capricious · fickle · hit-or-miss · spotty · temperamental · questionable · suspect · dubious
malfunctioning
Operating incorrectly or failing
- brokenDamaged beyond function
- dysfunctionalNot operating properly
- deficientHaving too little
substandard · shoddy · bungled · botched · glitchy · buggy · flawed · inoperative · nonfunctional · out-of-order
blemished
Having visible defects
damaged · impaired · disfigured · scarred · stained · degraded · subpar · inferior · second-rate · poor
cracked
Having surface fractures
dilapidated · disintegrating · rickety · shaky · teetering · tottering · unsteady · wobbly · brittle · fragile
undependable
Not consistently trustworthy
- untrustworthyNot deserving of confidence
- inconsistentLacking steady uniformity
- erraticLacking regularity or consistency
unpredictable · capricious · fickle · hit-or-miss · spotty · temperamental · questionable · suspect · dubious · fallible