1. without a master; not under the control or authority of a master
2. lacking skill, competence, or mastery; amateurish

Examples

• The masterless dog wandered the streets looking for food.
• After the revolution, the formerly enslaved people were no longer masterless in spirit.
• His masterless attempt at painting showed little technical ability.
• The masterless crew operated without clear leadership or direction.
• She refused to remain masterless and took control of her own destiny.
• The masterless performance lacked the polish of a professional production.