See also: -íssimo
- Added to an adjective, creates an adjective. This suffix is an intensifier which adds a qualifier of "extremely" or "remarkably."
- ^ Interlingua Course for Beginners by Thomas Breinstrup
- Added to adjectives to form superlatives.
- buono (“good”) + -issimo → buonissimo (“as good as it gets, extremely good”)
- grave (“serious”) + -issimo → gravissimo (“very serious”)
- consigliato (“recommended”) + -issimo → consigliatissimo (“highly recommended”)
- sconsigliato (“not recommended, inadvisable”) + -issimo → sconsigliatissimo (“lowly recommended, highly inadvisable”)
- primo (“first”) + -issimo → primissimo (“very first”)
- Added to adverbs to form superlatives.
- bene (“well”) + -issimo → benissimo (“very well”)
- spesso (“often”) + -issimo → spessissimo (“very often”)
- piano (“softly”) + -issimo → pianissimo (“very softly”)
- lentamente (“slowly”) + -issimo → lentissimamente (“very slowly”)
- velocemente (“fastly”) + -issimo → velocissimamente (“very fastly”)
- (often humorous) Added to some nouns to form extremes.
- Added to the stem of verbs ending in -ire to form the first-person plural imperfect subjunctive tense.
- Terms formed with this suffix are invariably stressed on the antepenult.
- The adjectival and adverbial suffix can be used multiple times for emphasis, when the suffix is used multiple times it drops its last vowel except the last time:
- bellissimo ― very beautiful
- bellissimissimo ― very very beautiful
- When the adverbal suffix is used together with the suffix -mente, the suffix -issimo becomes -issima and it is always before the suffix -mente:
- velocissimamente ― very fastly
- velocissimissimamente ― very very fastly
- The stress of -issimo is always stronger than the stress of -mente.