-tsu

Full of: -tsu

Level 5

-tsu means full of: mendi (mountain) → menditsu (mountainous), euri (rain) → euritsu (rainy), zorion (happiness) → zoriontsu (happy).

How It Works

1. Noun + -tsu. The adjective describes something that has a lot of what the noun names:

  • garrantzi (importance) → garrantzitsu (important)
  • arrisku (danger) → arriskutsu (dangerous)
  • ospe (fame) → ospetsu (famous)
  • indar (strength) → indartsu (strong)
  • harri (stone) → harritsu (stony)
  • zapore (flavour) → zaporetsu (tasty)
  • osasun (health) → osasuntsu (healthy)

Several of these are the everyday words: garrantzitsu is the normal word for important, and arriskutsu for dangerous.

2. Using the adjective. It works like any adjective: after the noun (abeslari ospetsu bat, a famous singer), and with -a in a sentence with da (Ospetsua da). Without an ending it can describe how someone lives: zoriontsu bizi dira (they live happily).

3. -tsu and -dun. -dun means having something; -tsu means having a lot of it. A group word does not usually take -tsu.

Tip: If you can say a lot of X, try X-tsu: a lot of rain → euritsu.

Examples (6)

  1. Euskal Herria herrialde menditsua da.

    The Basque Country is a mountainous land.

  2. Udaberria oso euritsua izan da.

    The spring has been very rainy.

  3. Oso gai garrantzitsua da.

    It is a very important topic.

    garrantzi (importance) + -tsu.

  4. Mendi hori arriskutsua da neguan.

    That mountain is dangerous in winter.

  5. Abeslari ospetsu bat ikusi dut.

    I have seen a famous singer.

    The adjective goes after the noun.

  6. Zoriontsu bizi dira herrian.

    They live happily in the village.

Common Mistakes

  • Leaving out -a after da.

    Gai hau garrantzitsu da.
    Gai hau garrantzitsua da.

    In standard Basque, an adjective that describes the subject with da takes the article: garrantzitsua da, arriskutsua da.

  • Putting the -tsu adjective before the noun.

    Ospetsu abeslari bat ikusi dut.
    Abeslari ospetsu bat ikusi dut.

    Like other Basque adjectives, a -tsu word follows the noun: abeslari ospetsu bat.

How It Connects

Tap a pattern to see what it builds on and what it leads to.

-tsuLevel 5Full of: -tsu

Learn This First

-tsu follows adjectives.