This is the 4781st most frequent Polish word.
odczuwalny
Felt or perceptible.
Here, 'odczuwalnym' is used as an adjective to describe 'problem' meaning 'noticeable' or 'perceivable', indicating the problem can be felt or observed.
Dla wielu osób smog jest odczuwalnym problemem w zimie.
For many people, smog is a noticeable issue in winter.
In this sentence, 'odczuwalny' conveys that the 'anxiety' could be felt or perceived by those present, acting as an adjective to 'niepokój' (anxiety).
Niepokój w grupie był odczuwalny po trudnej rozmowie.
The anxiety in the group was noticeable after the difficult conversation.
Here, 'odczuwalny' describes 'effect,' suggesting that the results of the medication can be felt or observed over time.