General:
* Learnable: This simply means capable of being learned.
* Teachable: This emphasizes that the subject can be taught effectively.
* Understandable: This emphasizes the clarity and accessibility of the subject matter.
* Accessible: Similar to understandable, but focusing on the learner's ability to approach the subject.
* Compelling: This describes a subject that is interesting and engaging, making it more likely to be learned.
Positive:
* Proficient: Indicates a high level of skill and knowledge in the subject.
* Skilled: Similar to proficient, but with a focus on practical ability.
* Brilliant: Suggests exceptional intellectual ability and understanding.
* Astute: Describes someone who is quick to learn and grasp complex concepts.
* Keen: Indicates a strong desire and enthusiasm for learning the subject.
Neutral:
* Capable: A general term for someone who has the potential to learn the subject.
* Able: Similar to capable, suggesting a basic level of competence.
* Adequate: Describes someone who can meet the basic requirements of learning the subject.
* Suitable: Indicates that the subject is a good fit for the learner's abilities.
Negative:
* Difficult: Describes a subject that is challenging to learn.
* Complex: Indicates a subject with many intricate details.
* Abstract: Describes a subject that is conceptual and not easily grasped.
* Unintuitive: Indicates a subject that is not easily understood through common sense or logic.
The best adjective to use will depend on the specific context and what you want to emphasize about the ability to learn the subject.