etkilidir

etkilidir is a Turkish adjective used to describe something that is effective or has the desired or intended effect. It is typically applied to methods, interventions, programs, treatments, or policies that produce the expected results or outcomes. In usage, etkilidir conveys that an approach works in practice, not only in theory.

Grammatical notes: etkilidir functions as a predicate adjective, often appearing in sentences such as "Bu yöntem etkilidir." It can also be used attributively in the form "etkili" as in "etkili bir yöntem" (an effective method). Related terms include etkili (effective), etkisiz (ineffective), and tesirli or etkileyici, which share the notion of influence or impact. In formal or analytical writing, etkilidir is common when asserting that a measure has proven results or outcomes under given conditions.

Etymology and usage: etkilidir derives from etkili, rooted in etki (effect or influence), with Turkish affixes forming a predicative construction to express current effectiveness. The word is widely used across disciplines such as health, education, public policy, and business, where evaluation of effectiveness is central. Its tone tends toward formal or technical language, though it can appear in general discourse when discussing results.

See also: etkili, etkilİs, etkisiz, tesirli, etkileyici.