disserviceable
Adjective
Meaning
Calculated to do disservice or harm; not serviceable; injurious; harmful; unserviceable.
Source: Webster's dictionarySynonyms
harmful
damaging
deadly
lethal
detrimental
poisonous
corrosive
malignant
deleterious
malevolent
mischievous
noxious
prejudicial
distressing
disadvantageous
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Antonyms
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Examples
OVATION, n. n ancient Rome, a definite, formal pageant in honor of one who had been disserviceable to the enemies of the nation. A lesser 'triumph.'