Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun extra
3 senses of extra
Sense 1
supernumerary, spear carrier, extra -- (a minor actor in crowd scenes)
=> actor, histrion, player, thespian, role player -- (a theatrical performer)
Sense 2
extra -- (an additional edition of a newspaper (usually to report a crisis))
=> edition -- (an issue of a newspaper; "he read it in yesterday's edition of the Times")
Sense 3
extra, duplicate -- (something additional of the same kind; "he always carried extras in case of an emergency")
=> artifact, artefact -- (a man-made object taken as a whole)
Antonyms of adj extra
3 senses of extra
Sense 1
excess, extra, redundant, spare, supererogatory, superfluous, supernumerary, surplus -- (more than is needed, desired, or required; "trying to lose excess weight"; "found some extra change lying on the dresser"; "yet another book on heraldry might be thought redundant"; "skills made redundant by technological advance"; "sleeping in the spare room"; "supernumerary ornamentation"; "it was supererogatory of her to gloat"; "delete superfluous (or unnecessary) words"; "extra ribs as well as other supernumerary internal parts"; "surplus cheese distributed to the needy")
INDIRECT (VIA unnecessary) -> necessary -- (absolutely essential)
Sense 2
extra, special -- (added to a regular schedule; "a special holiday flight"; "put on special buses for the big game")
INDIRECT (VIA unscheduled) -> scheduled -- (planned or scheduled for some certain time or times; "the scheduled meeting"; "the scheduled flights had to be cancelled because of snow")
Sense 3
extra, additional -- (further or added; "called for additional troops"; "need extra help"; "an extra pair of shoes")
INDIRECT (VIA additive) -> subtractive -- (constituting or involving subtraction; "a subtractive correction")
Similarity of adj extra
3 senses of extra
Sense 1
excess, extra, redundant, spare, supererogatory, superfluous, supernumerary, surplus -- (more than is needed, desired, or required; "trying to lose excess weight"; "found some extra change lying on the dresser"; "yet another book on heraldry might be thought redundant"; "skills made redundant by technological advance"; "sleeping in the spare room"; "supernumerary ornamentation"; "it was supererogatory of her to gloat"; "delete superfluous (or unnecessary) words"; "extra ribs as well as other supernumerary internal parts"; "surplus cheese distributed to the needy")
=> unnecessary (vs. necessary), unneeded -- (not necessary)
Sense 2
extra, special -- (added to a regular schedule; "a special holiday flight"; "put on special buses for the big game")
=> unscheduled (vs. scheduled) -- (not scheduled or not on a regular schedule; "an unscheduled meeting"; "the plane made an unscheduled stop at Gander for refueling")
Sense 3
extra, additional -- (further or added; "called for additional troops"; "need extra help"; "an extra pair of shoes")
=> additive (vs. subtractive) -- (characterized or produced by addition; "an additive process")
Synonyms of adv extra
1 sense of extra
Sense 1
extra -- (unusually or exceptionally; "an extra fast car")