poklidný
poklidný is a Czech adjective that translates to calm, peaceful, tranquil, or quiet. It is used to describe a state of being free from disturbance, agitation, or excitement. The term can be applied to various situations, objects, or feelings. For instance, one might describe a poklidný evening as one spent without any disturbances, a poklidný stream as one with a gentle flow of water, or a poklidný demeanor as one that is composed and serene.
The opposite of poklidný would be terms like rušný (busy, hectic), bouřlivý (stormy, turbulent), or neklidný (restless,