If you are supposed to do something, it means that you'd better get to it. If you're supposed to go to your grandma's house for dinner, then your grandmother expects you.

Something that's required is supposed, and something that's assumed to be true — even if it's really not — is also supposed. If you describe someone as your brother's supposed best friend, it means that everyone thinks of him as a good pal, but maybe he's not as loyal as they believe him to be. If higher taxes result in supposed improvements in your city's schools, things may be better, but there's still some doubt about it.

Definitions of supposed
  1. adjective
    required or under orders
    “I'm supposed to be there at ten”
    “he was supposed to go to the store”
    caused by law or conscience to follow a certain course
  2. adjective
    based primarily on surmise rather than adequate evidence
    “the supposed reason for his absence”
    synonyms: circumstantial, conjectural, divinatory, hypothetic, hypothetical, suppositional, suppositious, supposititious
    theoretic, theoretical
    concerned primarily with theories or hypotheses rather than practical considerations
  3. adjective
    mistakenly believed
    “the supposed existence of ghosts”
    improbable, unlikely
    not likely to be true or to occur or to have occurred
  4. adjective
    doubtful or suspect
    synonyms: alleged, so-called
    subject to question
Word Family

Test prep from the experts

Boost your test score with programs developed by’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.


  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week


  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week


  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week