If you thought Gen X was the slacker generation, check out Gen Y.

A new study implicates the Millennials as the least likely to want to work hard — by their own admission.

In a survey of high school seniors taken every year since 1976, members of the Gen Y generation (born between 1982 and 1999) agreed that they “don’t want to work hard” 39 percent of the time. In the mid-1970s, they agreed 25 percent of the time, and in the late-80s (Gen X) they agreed 30 percent of the time.

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The Millennials appear to be slightly less materialistic than their predecessors, however: monetary greed peaked in the late ’80s.

Still, there is a “growing disconnect between their willingness to do the work to pay for these things,” study author Jean Twenge, who is also the author of “Generation Me: Why Today’s Young Americans Are More Confident, Assertive, Entitled — and More Miserable Than Ever Before,” told Today.

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In the end, though, generational worries may be much ado about nothing. Another study points out that Gen Xers didn’t turn out so badly after all. Turns out, the 50 million Americans born between 1965 and 1976 match up to their preceding generation — the Baby Boomers — in terms of stability, responsibility and financial security. Most (70 percent) live with a partner, have 2.5 children (74 percent), and own homes (82 percent).

So what’s next for Generation Next? We may have to wait for future surveys to tell their story.

Photo: Actor Lena Dunham in a scene from the HBO series, “Girls.” Credit: HBO