noncharismatic

/nɑnkɛrɪzˈmætɪk/
adjective
  1. Lacking charisma; not having a compelling charm or appeal that inspires devotion in others.
    • The noncharismatic speaker failed to hold the audience's attention.
    • The candidate's noncharismatic demeanor made it hard for her to connect with voters.
    • He was a skilled manager but noncharismatic, so few people felt inspired by him.