unendowed (adj.)

• amateurish
• incapable
• incompetent
• ineffective
• inefficient
• inept
• inferior
• semiskilled
• unable
• unfinished
• unfit
• uninitiated
• unpolished
• unprepared
• unprofessional
• unqualified
• unschooled
• unskilled
• untalented
• untaught
• untrained
• untutored