unnecessary

needlessness

(mathematics) an inequality / Futoshiki, a type of logic puzzle

anomaly, abnormality, irregularity / preposterousness; irrationality

abnormal, anomalous; irregular, unordinary / preposterous; irrational; unreasonable

disobedience (refusal to obey)

“a hundred days of sermonizing, one fart” → a metaphor for how something that one has put great effort into can come to nothing after even a slight mistake, much as a hundred days of serious spiritual study can be lost to the winds

an irregular verb

(biochemistry) unsaturated fatty acid

a female given name