Also found in: Idioms, Wikipedia.
Related to underwhelmed: Sloan
tr.v. un·der·whelmed, un·der·whelm·ing, un·der·whelms
To fail to excite, stimulate, or impress: "He is just as entitled to be underwhelmed by the prospect of reigning over a fourth-class nation as the rest of us are by the prospect of living in it" (Peter Jay).
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
not impressed or excited
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
underwhelmed[ˌʌndərˈhwɛlmd] adj (humorous) → pas (particulièrement) impressionné(e)
Collins English/French Electronic Resource. © HarperCollins Publishers 2005