Definition of "mirthlessly" [mirthlessly]

• In a mirthless manner; sadly. (adverb)

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• "After suffering for years with Fred Armisen's mirthlessly wan version on Saturday Night Live, the premiere of Comedy Central's promising sketch-com Key & Peele peaked with Jordan Peele's spot-on Obama, spoofing his legendary emotional reserve by pairing him with an "anger translator" Keegan-Michael Key."
• "But then a couple of days later," he continues, laughing, but mirthlessly, "we were swimming in the sea and the eldest just disappeared."
• "That's because Jim Thompson, who also wrote "The Grifters" and "The Getaway," had no problem looking into the darkest reaches of the human soul and mirthlessly presenting what he found --- that is, violence, corruption and nihilism."