kvaliteedil

Kvaliteedil is the adessive singular form of the Estonian noun kvaliteet, meaning "on/at/with quality" or "regarding quality" depending on context. In Estonian grammar the suffix -l marks the adessive case, which commonly indicates location, possession in a peripheral sense, or the means by which something happens. The base word kvaliteet is a loanword ultimately from Latin qualitas (via French or English), and it denotes the concept of quality, especially in contexts such as production, services, and standards.

In use, kvaliteedil appears in phrases that relate actions or attributes to quality: for example, Virastamisel on kvaliteedil suur kaal (the quality has great importance in administration), or Kliendi ootused kvaliteedil mõjutavad toodet (the client's expectations regarding quality affect the product). The plural adessive form is kvaliteetidel. Related grammatical forms include the genitive kvaliteedi and the partitive kvaliteeti, used according to Estonian case rules and aspect.

Kvaliteedil commonly occurs in discussions of quality control (kvaliteedi kontroll), quality management (kvaliteedi juhtimine) and standards (kvaliteedistandardid). As a grammatical form rather than a standalone concept, it illustrates how Estonian expresses relations to abstract nouns through case marking.