sadest
The word "sadest" is the superlative form of the adjective "sad." It is used to indicate the highest degree of sadness. For example, one might describe a particularly sorrowful event as the "sadest" moment of their life. The use of "sadest" implies a comparison to other instances of sadness, highlighting the peak of emotional distress.
While "sadest" is grammatically correct, the more commonly accepted superlative form is "saddest." Both words convey
Understanding the distinction between "sadest" and "saddest" is primarily a matter of convention and common usage.