a. 重复的, 赘述的

[ adj ]
repetition of same sense in different words
<adj.all>
`a true fact' and `a free gift' are pleonastic expressionsthe phrase `a beginner who has just started' is tautological
at the risk of being redundant I return to my original proposition

Tautological \Tau`to*log"ic*al\, a. [Cf. F. tautologique.]
Involving tautology; having the same signification; as,
tautological expression. -- {Tau`to*log"ic*al*ly}, adv.

{Tautological echo}, an echo that repeats the same sound or
syllable many times.