fool /ful/ /fuːl/
idiot /ˈɪd.iː.ət/ /ˈɪdiət/
ass /æs/ /æs/
halfwit /ˈhæfwɪt/ /ˈhɑːfwɪt/
stupid /ˈstuː.pɪd/ /ˈstjuːpɪd/
foolish /ˈfuː.lɪʃ/ /ˈfuːlɪʃ/
idiotic /ˌɪdiˈɑtɪk/ /ˌɪdɪˈɒtɪk/
silly /ˈsɪl.i/ /ˈsɪli/