" inoperable "

1: not being in working order;

  * e.g., " ... we have several inoperable cars on the property "

•  Synonyms : 

•  down,

•  haywire,

•  inoperative,

•  kaput,

•  malfunctioning,

•  nonfunctional,

•  nonfunctioning,

•  nonoperating

•  Antonyms : 

•  functional,

•  functioning,

•  operable,

•  operant,

•  operating,

•  operational,

•  operative,

•  running,

•  working

2: not capable of being put to use or account;

  * e.g., " ... a delightfully creative but inoperable plan for building a theme park in the area "

•  Synonyms : 

•  impracticable,

•  impractical,

•  nonpractical,

•  unserviceable,

•  unusable,

•  unworkable,

•  useless

•  Antonyms : 

•  applicable,

•  feasible,

•  functional,

•  operable,

•  operational,

•  practicable,

•  practical,

•  serviceable,

•  ultrapractical,

•  usable,

•  useful,

•  utilizable,

•  workable