cardboard
1. [ noun ] a stiff moderately thick paper
Synonyms: composition_board
Related terms: paper packing_material paperboard pasteboard card strawboard corrugated_board binder's_board
2. [ adjective ] resembling cardboard especially in flimsiness
Synonyms: flimsy
Examples:

"apartments with cardboard walls"

Related terms: inferior
3. [ adjective ] without substance
Synonyms: unlifelike
Examples:

"cardboard caricatures of historical figures"

Related terms: artificial
Similar spelling:   cardiopathy