Handbook of Finnish, 2nd edition, section 11 Adverbs:

Comparison of adverbs

Adverbs do not have comparison forms, strictly speaking, since adverbs are a dead end in inflection and word derivation: an adverb may be an inflected form or a derived form by its origin, but it is itself not a base for inflected or derived words. However, in practical terms, some adverb types constitute sets that effectively mean comparison, as shown in the following table.

 

Positive

Comparative

Superlative

Adjective suffix

mpi : mman

in : imman

Adjective example

helppo (easy)

helpompi (easier)

helpoin (easiest)

Adverb suffix

sti

mmin

immin

Adverb example

helposti (easily)

helpommin (more easily)

helpoimmin (most easily)

As an alternative to superlative adverbials like helpoimmin, derivations like helpoiten are often used for many words.

The following section describes how the mmin and immin words can be described as inflected forms of the comparative and superlative adjectives rather than derivations of the basic positive adjective.


© 2015, 2025, 2026 Jukka K. Korpela, jukkakk@gmail.com. This book was last updated February 18, 2026.