churlish

/ˈtʃɝː.lɪʃ/

形容词

粗鲁无礼的，粗野的；不友好的；令人讨厌的
They invited me to dinner and I thought it would be churlish to refuse.
他们邀请我去吃晚饭，我觉得拒绝有点儿不礼貌。