unknowledgeable
/ʌnˈnɒlɪdʒəb(ə)l
/(also unknowledgable)
adjective
Not well informed or educated: she was extremely unknowledgeable about investments services staffed by unknowledgeable people...
- Giving excuses too often undermines a person's reputation by making him seem self-absorbed, unreliable or unknowledgeable.
- Choosing who to manage a player's money is vital; many unknowledgeable players merely leave the task to their agents.
- Too often, it's an abuse of power against those too weak or unknowledgeable to fight back.