Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "unserviceable" in a sentence
"For instance, approximately one-fourth of the mounts in the 3rd Virginia were classified as unserviceable.70"
"Short term unserviceable aircraft are undergoing minor works, forward maintenance or any other unforeseen rectification work that can arise on a day-to-day basis."
"ANSWER - Once flags are "unserviceable" - unflyable - they are to be burned and never thrown in the trash, according to some people."