"If you say so": Dismissive agreement I would like to know some ways to agree in a non-committal or dismissive way. For instance, in English, we have:

If you say so.
Is that so? (with a flat intonation)
Really? (flat intonation)
Whatever you say.

In Chinese, I'm a bit at a loss. &quot;Is that so?&quot; and &quot;Really?&quot; work fine translated literally (是吗？, 真的吗？, similar intonation). Beyond that, I'm drawing a blank. Furthermore, it seems difficult to look these things up since the tone is important and not the literal meaning.
A few that are used the most in my surroundings:


好吧 (in a helpless tone) = Fine.
随便 = whatever.
都行 = whatever.
无所谓 = I don't care.
你说[X]就[X]吧 = If you say so.