look-alike vs unlike

look-alike

unlike

verb
  • To withdraw support for a particular thing, especially on social networking websites. 

  • To dislike. 

noun
  • The act of withdrawing one's like from a post on social media. 

  • Something that is not like something else; something different. 

prep
  • In contrast with; as opposed to. 

  • Not typical of one's character or personality. 

  • Differently from; not in a like or similar manner. 

adj
  • Unequal. 

  • Not like; dissimilar (to); having no resemblance. 

How often have the words look-alike and unlike occurred in a corpus of books? (source: Google Ngram Viewer )