Antonyms of adj exceptional

3 senses of exceptional

Sense 1
exceeding, exceptional, olympian, prodigious, surpassing -- (far beyond what is usual in magnitude or degree; "a night of exceeding darkness"; "an exceptional memory"; "olympian efforts to save the city from bankruptcy"; "the young Mozart's prodigious talents")

INDIRECT (VIA extraordinary) -> ordinary -- (not exceptional in any way especially in quality or ability or size or degree; "ordinary everyday objects"; "ordinary decency"; "an ordinary day"; "an ordinary wine")

Sense 2
especial (prenominal), exceptional, particular (prenominal), special -- (surpassing what is common or usual or expected; "he paid especial attention to her"; "exceptional kindness"; "a matter of particular and unusual importance"; "a special occasion"; "a special reason to confide in her"; "what's so special about the year 2000?")

INDIRECT (VIA uncommon) -> common -- (having no special distinction or quality; widely known or commonly encountered; average or ordinary or usual; "the common man"; "a common sailor"; "the common cold"; "a common nuisance"; "followed common procedure"; "it is common knowledge that she lives alone"; "the common housefly"; "a common brand of soap")

Sense 3
exceptional (prenominal) -- (deviating widely from a norm of physical or mental ability; used especially of children below normal in intelligence; "special educational provisions for exceptional children")

INDIRECT (VIA abnormal) -> normal -- (being approximately average or within certain limits in e.g. intelligence and development; "a perfectly normal child"; "of normal intelligence"; "the most normal person I've ever met")

Similarity of adj exceptional

3 senses of exceptional

Sense 1
exceeding, exceptional, olympian, prodigious, surpassing -- (far beyond what is usual in magnitude or degree; "a night of exceeding darkness"; "an exceptional memory"; "olympian efforts to save the city from bankruptcy"; "the young Mozart's prodigious talents")
       => extraordinary (vs. ordinary) -- (beyond what is ordinary or usual; highly unusual or exceptional or remarkable; "extraordinary authority"; "an extraordinary achievement"; "her extraordinary beauty"; "enjoyed extraordinary popularity"; "an extraordinary capacity for work"; "an extraordinary session of the legislature")

Sense 2
especial (prenominal), exceptional, particular (prenominal), special -- (surpassing what is common or usual or expected; "he paid especial attention to her"; "exceptional kindness"; "a matter of particular and unusual importance"; "a special occasion"; "a special reason to confide in her"; "what's so special about the year 2000?")
       => uncommon (vs. common) -- (not common or ordinarily encountered; unusually great in amount or remarkable in character or kind; "uncommon birds"; "frost and floods are uncommon during these months"; "doing an uncommon amount of business"; "an uncommon liking for money"; "he owed his greatest debt to his mother's uncommon character and ability")

Sense 3
exceptional (prenominal) -- (deviating widely from a norm of physical or mental ability; used especially of children below normal in intelligence; "special educational provisions for exceptional children")
       => abnormal (vs. normal) -- (departing from the normal in e.g. intelligence and development; "they were heartbroken when they learned their child was abnormal"; "an abnormal personality")