Turkish frequently forms adjectives from nouns by adding specific suffixes. The most common ones are -li (with/having) and -siz (without/-less).

The Suffix -li / -lı / -lu / -lü ("with", "having"):

This suffix indicates that the noun possesses the quality or item denoted by the root noun. It follows I-Type vowel harmony.

• şeker (sugar) + -li → şekerli (sugary, with sugar)
  Example: şekerli çay (tea with sugar)
• süt (milk) + -lü → sütlü (milky, with milk)
  Example: sütlü kahve (coffee with milk)
• akıl (intelligence) + -lı → akıllı (intelligent, smart)
  Example: akıllı çocuk (smart child)
• güç (power) + -lü → güçlü (powerful, strong)
  Example: güçlü adam (strong man)
• tuz (salt) + -lu → tuzlu (salty)
  Example: tuzlu yemek (salty food)

The Suffix -siz / -sız / -suz / -süz ("without", "-less"):

This suffix indicates the absence of the quality or item denoted by the root noun. It also follows I-Type vowel harmony.

• şeker (sugar) + -siz → şekersiz (sugar-free, without sugar)
  Example: şekersiz kahve (coffee without sugar)
• ev (home) + -siz → evsiz (homeless)
  Example: evsiz insanlar (homeless people)
• para (money) + -sız → parasız (moneyless, without money)
  Example: parasız kaldım (I was left without money)
• tat (taste) + -sız → tatsız (tasteless)
  Example: tatsız şaka (tasteless joke)
• iş (work/job) + -siz → işsiz (unemployed, jobless)
  Example: işsiz genç (unemployed youth)

These suffixes are very productive and allow for the creation of many descriptive adjectives.