What is the meaning of Absolute_superlative?

In Italian, Spanish, Portuguese, and Catalan: the form of an adjective formed by adding the suffixes -issimo, -ísimo, -íssimo, -érrimo, -imo, or -íssim to the adjective (with any final vowel dropped) to express a superlative that cannot be exceeded, having the sense “as ... as possible”.

In Greek: one of the degrees of comparison in an adjective that stresses an exceptional property without making a direct comparison, its closest equivalent in English being a most important letter, a very high mountain or absolutely pure water. It is formed by adding the suffix -τατος (declined) to the adjective's nominative, neuter singular.

In Romanian: a form of an adjective with various adverbs preceding it: foarte / tare / extrem de / cât se poate de + adjective. The most frequent and standard adverb is foarte (very). The other adverbs or adverbial constructions are emotionally marked. The adverb tare is used in the colloquial style.

Source: wiktionary.org