Ill-mannered, crude.
Resulting from ignorance; foolish; silly.
Not knowing (a fact or facts), unaware (of something).
Unknowledgeable or uneducated; characterized by ignorance.
One who is ignorant.
Pursued as a gamble, with possible large profits or losses; risky.
Pertaining to financial speculation; Involving or resulting from high-risk investments or trade.
Characterized by speculation; based on guessing, unfounded opinions, or extrapolation.