Isn't いろいろ多彩な a tautology?


In [dictionary
examples](http://ejje.weblio.jp/sentence/content/%E5%A4%9A%E5%BD%A9%E3%81%AA)
for 多彩な there is a sentence:

> メニューにはいろいろ多彩な料理があった。  
>  There was a great variety of dishes on the menu.

Isn't いろいろ多彩な a
[tautology](https://en.m.wikipedia.org/wiki/Tautology_\(grammar\))? Do いろいろ
and 多彩 convey a different meaning? Is there a difference between the above
sentence and the following?

> メニューにはいろいろ料理があった。
>
> メニューには多彩な料理があった。

Is it an emphasis of some sort, or just a quirk in the body of examples?




いろいろ is used to express the meaning "various". So 色々【いろいろ】多彩【たさい】 sounds like
it emphasizes that there was a _great_ variety (not just _some_ variety) to
me.

That being said, I don't think any language (Japanese included) puts
restrictions on using tautologies or being redundant with adjective choice and
such. This particular construction (色々【いろいろ】多彩【たさい】) may be a collocation
(things that often come together) to some extent. (A Google search for those
terms together gave me ~2.4k results).

In English, similar things are sometimes done. For
[example](https://www.dailywritingtips.com/7-redundant-adjectives/):

  * free gift
  * closed fist
  * overused cliché

