REDUNDANT

pleonastic, redundant, tautologic, tautological

(adjective) repetition of same sense in different words; “‘a true fact’ and ‘a free gift’ are pleonastic expressions”; “the phrase ‘a beginner who has just started’ is tautological”; “at the risk of being redundant I return to my original proposition”- J.B.Conant

excess, extra, redundant, spare, supererogatory, superfluous, supernumerary, surplus

(adjective) 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”

Source: WordNet® 3.1

Etymology

Adjective

redundant (comparative more redundant, superlative most redundant)

Superfluous; exceeding what is necessary.

(of words, writing, etc) Repetitive or needlessly wordy.

(chiefly, British, NZ, AU) Dismissed from employment because no longer needed.

Duplicating or able to duplicate the function of another component of a system, providing backup in the event the other component fails.

Antonyms

• non-redundant

Synonyms

• (dismissed from employment): surplus to requirements

Source: Wiktionary

Re*dun"dant (-dant), a. Etym: [L. redundans, -antis, p. pr. of redundare: cf. F. redondant. See Redound.]

1. Exceeding what is natural or necessary; superabundant; exuberant; as, a redundant quantity of bile or food. Notwithstanding the redundant oil in fishes, they do not increase fat so much as flesh. Arbuthnot.

2. Using more worrds or images than are necessary or useful; pleonastic. Where an suthor is redundant, mark those paragraphs to be retrenched. I. Watts.

Syn.

– Superfluous; superabundant; excessive; exuberant; overflowing; plentiful; copious.

Source: Webster’s Unabridged Dictionary 1913 Edition