Meaning oflevel-headedin English

Adjective

1. having a calm and rational mindset; making sensible decisions
   My level-headed friend helped me make a wise investment decision.
   Synonyms:

   rationalsensiblecalmcomposedclear-headedbalancedprudentjudicious
   Antonyms:

   impulsiveirrationalemotionalrecklessimpetuous