When "rhetoric" refers to the art of effective communication:
* Simplicity: Plain, direct language without embellishment or manipulation.
* Honesty: Authenticity and truthfulness in communication, devoid of deception or persuasive tricks.
* Clarity: Clear and straightforward expression, free from ambiguity or obfuscation.
* Directness: Speaking plainly and directly, without roundabout approaches or hidden agendas.
When "rhetoric" refers to empty or insincere speech:
* Substance: Meaningful and factual content, devoid of empty words or hollow promises.
* Truth: Honest and verifiable information, opposed to misleading or manipulative claims.
* Action: Concrete actions or results, rather than just words or promises.
* Sincerity: Genuine and heartfelt communication, without artificiality or pretense.
When "rhetoric" refers to a style of language:
* Plainness: Simple and straightforward language, lacking embellishment or figurative language.
* Informality: Casual and conversational language, devoid of formal or ornate expressions.
* Factuality: Objective and verifiable statements, free from subjective opinions or emotional appeals.
The best antonym for "rhetoric" will depend on the specific context in which the word is used.