Even-tenored is a term that describes a person or situation that is calm, stable, and consistent. If you do not want to use the term "even-tenored" in your writing, there are numerous synonyms to choose from. Some of the most common alternatives include equable, level-headed, composed, tranquil, serene, collected, poised, balanced, consistent, stable, reliable, and unflappable. Any of these words can be used to convey a similar meaning to even-tenored and are suitable for various types of writing. Whether you are composing an academic essay, creative writing, or a business report, there are plenty of synonyms to choose from to express your intended meaning.