Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun undesirable

1 sense of undesirable

Sense 1
undesirable -- (one whose presence is undesirable; "rounding up vagrants and drunks and other undesirables")
       => unwelcome person, persona non grata -- (a person who for some reason is not wanted or welcome)

Antonyms of adj undesirable

2 senses of undesirable

Sense 1
undesirable (vs. desirable), unwanted -- (not wanted; "undesirable impurities in steel"; "legislation excluding undesirable aliens";"removed the unwanted vegetation")

desirable (vs. undesirable) -- (worth having or seeking or achieving; "a desirable job"; "computer with many desirable features"; "a desirable outcome")
        => coveted, desired, in demand (predicate), sought after -- (greatly desired)
        => delectable, sexually attractive -- (capable of arousing desire; "the delectable Miss Haynes")
        => enviable -- (causing envy; "an enviable position")
        => plummy -- (very desirable; "a plummy leading role")
        => preferable, preferred -- (more desirable than another; "coffee is preferable to tea"; "Danny's preferred name is `Dan'")

Sense 2
undesirable, unsuitable -- (not worthy of being chosen (especially as a spouse))

INDIRECT (VIA ineligible) -> eligible -- (qualified for or allowed or worthy of being chosen; "eligible to run for office"; "eligible for retirement benefits"; "an eligible bachelor")

Similarity of adj undesirable

2 senses of undesirable

Sense 1
undesirable (vs. desirable), unwanted -- (not wanted; "undesirable impurities in steel"; "legislation excluding undesirable aliens";"removed the unwanted vegetation")
       => unenviable -- (so undesirable as to be incapable of arousing envy; "unenviable notoriety")
          Also See-> hateful#1; unwanted#1

Sense 2
undesirable, unsuitable -- (not worthy of being chosen (especially as a spouse))
       => ineligible (vs. eligible) -- (not eligible; "ineligible to vote"; "ineligible for retirement benefits")

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