cardboard cardboard /ˈkɑːrdˌbɔrd/

adjective

1. Without substance  ( cardboard , unlifelike )
   without substance
    Cardboard caricatures of historical figures
   cardboard caricatures of historical figures
   

noun

1. () A stiff moderately thick paper  ( composition board , cardboard )
   a stiff moderately thick paper
    She used cardboard to make a model of a house, cutting and folding the pieces to fit together perfectly
   She used cardboard to make a model of a house, cutting and folding the pieces to fit together perfectly