abominable

Adjective

Synonyms: detestable execrable odious atrocious awful dreadful painful terrible unspeakable

WordNet 3.0

Adjective (2)

unequivocally detestable“abominable treatment of prisoners”“detestable vices”“execrable crimes”“consequences odious to those you govern — Edmund Burke”Synonyms: detestable execrable odious
exceptionally bad or displeasing“atrocious taste”“abominable workmanship”“an awful voice”“dreadful manners”“a painful performance”“terrible handwriting”“an unspeakable odor came sweeping into the room”Synonyms: atrocious awful dreadful painful terrible unspeakable

Webster's Dictionary (GCIDE)

Abominable \A*bom"i*na*ble\, a. [F. abominable. L. abominalis. See Abominate.]

1.Worthy of, or causing, abhorrence, as a thing of evil omen; odious in the utmost degree; very hateful; detestable; loathsome; execrable. [1913 Webster]

2.Excessive; large; -- used as an intensive. [Obs.] [1913 Webster]

Note: Juliana Berners . . . informs us that in her time [15th c.], "abomynable syght of monkes" was elegant English for "a large company of friars." --G. P. Marsh. [1913 Webster]