Antonyms of adj serviceable

3 senses of serviceable

Sense 1
serviceable (vs. unserviceable) -- (ready for service or able to give long service; "serviceable equipment"; "heavy serviceable fabrics")

unserviceable (vs. serviceable) -- (not ready for service; "unserviceable equipment may be replaced")
        => broken-down -- (not in working order; "had to push the broken-down car"; "a broken-down tractor fit only for children to play on")
        => burned-out, burnt-out -- (inoperative as a result of heat or friction; "a burned-out picture tube")
        => inoperable -- (not able to perform its normal function)
        => unrepaired -- (unserviceable because necessary repairs have not been made)

Sense 2
serviceable -- (capable of being put to good use; "a serviceable kitchen gadget")

INDIRECT (VIA useful) -> useless -- (having no beneficial use or incapable of functioning usefully; "a kitchen full of useless gadgets"; "she is useless in an emergency")

Sense 3
serviceable -- (intended or able to serve a purpose without elaboration; "serviceable low-heeled shoes";)

INDIRECT (VIA practical) -> impractical -- (not practical; not workable or not given to practical matters; "refloating the ship proved impractical because of the expense"; "he is intelligent but too impractical for commercial work"; "an impractical solution")

Similarity of adj serviceable

3 senses of serviceable

Sense 1
serviceable (vs. unserviceable) -- (ready for service or able to give long service; "serviceable equipment"; "heavy serviceable fabrics")
       => durable, long-wearing -- (capable of withstanding wear and tear and decay; "durable denim jeans")
       => functional, usable, useable, operable, operational -- (fit or ready for use or service; "the toaster was still functional even after being dropped"; "the lawnmower is a bit rusty but still usable"; "an operational aircraft"; "the dishwasher is now in working order")
          Also See-> functional#1; practical#1; useful#1, utile#1

Sense 2
serviceable -- (capable of being put to good use; "a serviceable kitchen gadget")
       => useful (vs. useless), utile -- (being of use or service; "the girl felt motherly and useful"; "a useful job"; "a useful member of society")

Sense 3
serviceable -- (intended or able to serve a purpose without elaboration; "serviceable low-heeled shoes";)
       => practical (vs. impractical) -- (concerned with actual use or practice; "he is a very practical person"; "the idea had no practical application"; "a practical knowledge of Japanese"; "woodworking is a practical art")