There are several synonyms for the phrase "more declinate", which means a gradual decline or a leaning towards something. Other words that can be used in place of "more declinate" include "inclination", "slope", "gradient", "declivity", "descent", and "gradual descent". These words all express a similar idea of something moving downwards or leaning towards a particular direction. The word "decline" itself can also be a synonym, though it typically refers to a more abrupt decrease in something. Regardless of the specific word used, all of these synonyms suggest a movement towards a lower position or a weaker state.