迟疑不定的感受a feeling of doubt and uncertainty这场大雨也许能使变幻不定的天气稳定下来.The heavy rain might settle the changeable weather.他经历过很多漂泊不定的生活.He has knocked around quite a bit....

“不定的”的英语可以翻译为：errant，incomplete，top-heavy，variable，inconstant ...