Mikilvægasti

Mikilvægasti is the masculine singular definite superlative form of the Icelandic adjective mikilvægur, meaning "the most important" or "the weightiest." The base mikilvægur is a compound of mikill ("great, big") and vægur ("weighty"), and it denotes importance or significance. In Icelandic, adjectives agree with the noun they modify for gender, number and definiteness, and superlatives express the highest degree within a group. Mikilvægasti is used with a definite masculine singular noun, for example: "Þetta er mikilvægasti punkturinn í skýrslunni" (This is the most important point in the report).

For feminine and neuter nouns, different endings are used to form the definite superlative, while indefinite contexts may use the base form or other inflected variants. The word is commonly found in formal writing to highlight priority or significance among items, issues, or factors.

Related terms include mikill (great), mikilvægur (important), and other adjectives’ comparative and superlative forms. Mikilvægasti serves as a precise, formal way to designate the top level of importance within a defined set.