say it: uh-MIS
amiss is an adverb and adjective meaning "away from the correct or expected course". It carries 4 recorded senses.
away from the correct or expected course
“something has gone awry in our plans”
“something went badly amiss in the preparations”
in an improper or mistaken or unfortunate manner
“if you think him guilty you judge amiss”
“he spoke amiss”
“no one took it amiss when she spoke frankly”
in an imperfect or faulty way
“The lobe was imperfectly developed”
“Miss Bennet would not play at all amiss if she practiced more”
not functioning properly
“something is amiss”
“has gone completely haywire”
“something is wrong with the engine”
Definitions, synonyms and semantic relations for amiss come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.