Not having received training or experience.

अप्रशिक्षित

English Usage: The untrained dog ran away during the walk.

Hindi Usage: अप्रशिक्षित कुत्ता चलने के दौरान भाग गया।

Not developed or refined; lacking skill.

अविकसित

English Usage: His unpracticed techniques in painting were evident in his early works.

Hindi Usage: उसके चित्रकला में अप्रशिक्षित तकनीकें उसके प्रारंभिक कामों में स्पष्ट थीं।

Lacking proficiency due to insufficient practice.

अपर्याप्त अभ्यास के कारण दक्षता की कमी होना।

English Usage: The unpractised musicians struggled to keep up with the tempo.

Hindi Usage: अनुभवहीन संगीतकारों को ताल के साथ बनाए रखना मुश्किल हो गया।

Someone who has not undergone training.

अप्रशिक्षित व्यक्ति

English Usage: The untrained staff struggled to complete the task.

Hindi Usage: अप्रशिक्षित कर्मचारियों ने कार्य पूरा करने में संघर्ष किया।