← BackshareGuessslimpsy/ˈslɪmpsi/adjectiveThin, flimsy, or weak in material or construction.The slimpsy fabric tore as soon as I pulled it.He wore a slimpsy jacket that didn't protect him from the cold.The box was made of slimpsy cardboard and collapsed under the weight.SynonymsflimsythinweakAntonymssturdystrong