Not delicious; disagreeable to the senses.(adjective)
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Use "undelicious" in a sentence
"A most undelicious assassin floating facedown in the fondue."
"With the wretched waitress from Ino and the disappointment of eating when I wasn't even hungry and eating stale chips to boot, the punishment of having to explain to some csr that the problem is with the service and not with me I was simply exhausted but not tired as my tummy was full of undelicious food eaten for no logical reason."
"In truth, the avowal of this wild girl; an avowal made indeed with the ardour -- but also breathing of the innocence, the inexperience -- of her character -- had opened to his fancy new and not undelicious prospects."