What literary device involves the comparison of two unlike things without using words of comparison?

The answer is indeed metaphors, which are a literary device that creates a direct comparison between two unlike things without the use of words like "as" or "like." This powerful tool allows writers to convey complex ideas and emotions in a more immediate and impactful way. For instance, saying "Time is a thief" implies that time steals moments from our lives, conveying a deeper understanding of the passage of time and its effects rather than simply stating it directly.

In contrast, similes, which also compare two unlike things, rely explicitly on comparative words such as "like" or "as," which distinguishes them from metaphors. Allegories use characters and events symbolically to convey deeper meanings, often extending beyond simple comparisons. Analogies, while similar in that they draw comparisons, typically explain an idea or make a connection between two different things in a more detailed manner. Therefore, while these options relate to comparisons, only metaphors serve to create a direct, implicit comparison without specific comparative language.