significative

/sɪɡˈnɪfɪˌkeɪtɪv/
adjective
  1. Serving as a sign or indication of something.
    • Archaeologists found markings significative of an ancient language.
    • Her smile was significative of her approval.
    • The dark clouds were significative of an approaching storm.
  2. Having a particular meaning; meaningful.
    • Every gesture in the dance is significative.
    • The artist chose colors that are significative of hope.
    • In poetry, every word can be significative.
Antonyms