действи́тельный — meaning in English

deystvitelnyy

English meaning

active adj Engaging in physical movement or exercise regularly.
actual adj Existing in reality; real, not just imagined or planned.
available adjective Able to be obtained, used, or accessed.
concrete noun A hard building material made by mixing cement, water, sand, and gravel, which sets solid.
effective adj Producing the intended result; actually working.
factual adj Based on facts rather than opinion or invention.
legitimate adj Allowed by, or in agreement with, the law.
real adj Actually existing or happening, rather than imagined, fictional, or invented.
substantial adjective Large enough in size, amount, or value to be significant.
valid adj Based on sound reasoning; well-founded and hard to argue against.

действи́тельный is used for these senses in English:

active In action; actually proceeding; working; in force
actual Existing in reality, not just potentially; really acted or acting; occurring in fact. [from 14th c.]
actual (now, rare) in action at the time being; now existing; current. [from 18th c.]
effective Actually in effect.
factual Pertaining to or consisting of objective claims.
legitimate Conforming to known principles, or established or accepted rules or standards; valid.
real True, genuine, not merely nominal or apparent.
real (mathematics, of a number) Being either a rational number, or the limit of a convergent infinite sequence of rational numbers: being one of a set of numbers with a one-to-one correspondence to the points on a line.

adj Engaging in physical movement or exercise regularly.
adj Currently functioning, in use, or in progress.
adj Grammar: describing a sentence structure where the subject performs the action, as opposed to the passive voice.