Superlative

In grammar, the superlative is the form of an adverb or adjective that is used to signify the greatest degree of a given descriptor. English superlatives are typically formed with the suffix -est (e.g. healthiest, weakest) or the word most (most recent, most interesting). One preposition, near, also has a superlative form, as in Find the restaurant nearest your house.

In English

Simply put, the word 'superlative' is defined as

Superlatives with absolutes

Some grammarians object to the use of the superlative or comparative with words such as full, complete, unique, or empty, which by definition already denote either a totality, an absence, or an absolute. However, such words are routinely and frequently qualified in contemporary speech and writing. This type of usage conveys more of a figurative than a literal meaning, because in a strictly literal sense, something cannot be more or less unique or empty to a greater or lesser degree. On the other hand, in a strict literal sense, absolutes do only exist within rigorous abstract concepts, such as mathematics, but not in the real world or in the sense of human cognition or communication. For example, in the phrase "most complete selection of wines in the Midwest," "complete" doesn't mean "having all elements represented," it merely connotes that the selection is more well-rounded and relatively extensive. The superlative in this case is not intended to indicate absolutely that all other existing selections are necessarily less extensive, but it suggests that it is probably and currently the most extensive collection officially known.