The comparative degree (-mpi)

The Comparative Suffix: -mpi

To compare two things in Finnish, add the suffix -mpi to the adjective's stem. When stating what something is being compared to, use the word kuin (than).

When a two-syllable adjective ends in -a or , that final vowel changes to an -e before the suffix is added. For example, syvä (deep) becomes syvempi. Adding -mpi also triggers consonant gradation in the stem. The common word pitkä (long, tall) undergoes both of these changes, resulting in the comparative form pidempi.

This river is longer.
Tämä joki on pidempi.
He is taller than me.
Hän on pidempi kuin minä.
This lake is deeper than that river.
Tämä järvi on syvempi kuin tuo joki.

Other Adjective Stems

For adjectives ending in -ut or -yt, such as lyhyt (short), the stem ends in -e (lyhye-). Simply add the suffix to this stem to get lyhyempi.

Is the new bed shorter than the old one?
Onko uusi sänky lyhyempi kuin vanha?

For adjectives with three or more syllables, the final vowel does not change. Attach the -mpi suffix directly:

  • korkea (high, tall) → korkeampi
  • matala (low, shallow) → matalampi
  • leveä (wide) → leveämpi
That tree is taller than this house.
Tuo puu on korkeampi kuin tämä talo.
Is the lake shallower than the sea?
Onko järvi matalampi kuin meri?
That street is wider than this road.
Tuo katu on leveämpi kuin tämä tie.

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