Now for some bad news: There is no foolproof (= 100% certain) way to know whether you can make a negative word with –in or –un. Some words take –dis for the negative! For instance, the opposite of honest is dishonest. However there are two rules that you can use. Rule 1: Words with –able… Continue reading Unforgettable or Inforgettable? – Would You Like In or Un with your Negative Adjective?