

It was foolish to lend him so much money.
[ɪt ˈwəz ˈfulɪʃ tə ˈlɛnd ˈhɪm ˈsoʊ ˈmətʃ ˈməni.]
I felt really foolish when I forgot her name.
[aɪ ˈfɛlt ˈriəli ˈfulɪʃ ˈwɛn aɪ fərˈɡɑt ˈhɜr ˈneɪm.]
That was the most foolish thing he's ever done.
[ˈðæt wəz ðə ˈmoʊst ˈfulɪʃ ˈθɪŋ ˈhiz ˈɛvər ˈdən.]
"foolish" is in the lesson "Types of people" (Level 34), along with 10 other useful words. LinDuo has 180 topic lessons like this one, 2,375 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.