cardboardy

British  

/ ˈkɑːdˌbɔːdɪ /

adjective

1. like cardboard, esp in stiffness, texture, or taste

   it becomes cardboardy if cooked too long

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Example Sentences

The cups that I sampled from beans ground the night before resulted in thin, stale and cardboardy coffee, even when I used freshly roasted beans.

From Seattle Times • Feb. 25, 2019

Most importantly, the white corn tortillas here are above average quality, tasting more of toasty white corn than your standard-issue cardboardy taco tortilla. 

From Los Angeles Times • Apr. 16, 2015

Unfortunately, the more Jackson gets into Tolkien ephemera, the more he has to invent and imagine, and the more cardboardy The Hobbit seems.

From Time • Dec. 18, 2012

“It happens from time to time, with those kind of cardboardy leather belts,” Santangelo continued.

From Washington Post • Sep. 11, 2012

We were tired of the sugary, mass-manufactured cardboardy crap you get served in cinemas and supermarkets, and we thought we could do better.

From The Guardian • Aug. 22, 2011