limitless       
adjective uk/ˈlɪm.ɪt.ləs/ us/ˈlɪm.ɪt.ləs/
 无限的,没有界限的;无止境的
without limit
  the limitless sky 一望无际的天空 
 The congresswoman said that the days of limitless spending were over. 国会女议员称花钱毫无节制的日子一去不复返了。 
 Synonyms: boundlessunboundedunlimited