untrained
unskilled / unconditioned / amateur
Adjective
This term describes a lack of formal education or systematic preparation, often implying a raw or instinctive approach to a skill. It carries a neutral to slightly negative connotation depending on whether the context emphasizes natural talent or a dangerous lack of competence. In physical contexts, the word shifts toward a lack of conditioning or stamina. It suggests a body that has not been hardened or optimized for the rigors of a specific sport or task, rather than a lack of knowledge.
Meanings
Adjective
Not having received formal instruction or specialized training in a particular skill or profession.
"He is an untrained musician who learned to play by ear."