естественным

естественным

"Natural" or "naturally" (instrumental case of "естественный").

Here, "естественным" is used as an adjective to describe the appearance of the drawing as being natural or realistic.

Этот рисунок выглядит естественным.

This drawing looks natural.

In this sentence, "естественным" is employed as an adjective to characterize the manner of speaking as unforced and organic.

Он старается говорить естественным голосом.

He tries to speak in a natural voice.

Here, "естественным" acts as a predicate adjective emphasizing the common and nature-aligned occurrence of blooms in spring.

Естественным является то, что весной цветы начинают цвести.

It is natural that flowers begin to bloom in spring.