General Antonyms:
* Expert: This is a direct opposite of charlatan, as it signifies someone with genuine knowledge and skill.
* Genuine: This emphasizes the authenticity and honesty of a person, contrasting with the deceitful nature of a charlatan.
* Honest: This focuses on the ethical aspect, emphasizing the opposite of a charlatan's dishonesty.
* Legitimate: This refers to someone or something being authentic and recognized as valid, contrasting with the fraudulent nature of a charlatan.
Contextual Antonyms:
* Healer (in the context of medicine): A charlatan might falsely claim healing powers, while a real healer would have legitimate knowledge and skills.
* Scientist (in the context of science): A charlatan might use pseudoscience to mislead people, while a scientist adheres to the scientific method.
* Teacher (in the context of education): A charlatan might deceive students with false information, while a teacher would provide accurate knowledge.
Ultimately, the best antonym for "charlatan" will depend on the specific situation and the traits you wish to emphasize.