Which term denotes the quality of appearing to be true or likely?

The term that denotes the quality of appearing to be true or likely is verisimilitude. This word comes from the Latin "verisimilitudo," meaning "likeness to truth." It is commonly used in literature and art to describe how believable or realistic a narrative or representation is, even if it may not be factual.

In contrast, veracity refers to truthfulness or accuracy, and reality pertains to the state of things as they actually exist, which does not specifically encapsulate the quality of seeming true. Truthfulness, while closely related, focuses more on honesty and integrity in communication rather than on the likelihood or appearance of truth. Verisimilitude emphasizes the semblance of truth rather than objective truth itself, making it the most suitable term for describing that quality.