stosowny — meaning in English

English meaning

apposite adjective Very suitable to the particular situation or point being made; strikingly to the point.
appropriate adj Suitable or correct for a particular situation.
apropos adj Fitting or relevant to the situation at hand.
decorous adj Behaving in a way that is proper, polite and fits what is expected on the occasion.
fitting adj Appropriate or suitable for the occasion.
relevant adjective Closely connected to or important for the subject being discussed.
seemly adj Describes behaviour that is proper and fitting for the occasion.

stosowny is used for these senses in English:

apposite Strikingly appropriate or relevant; well suited to the circumstance or in relation to something.
appropriate Suitable or fit; proper; felicitous.
appropriate Suitable to the social situation or to social respect or social discreetness; socially correct; socially discreet; well-mannered; proper.
apropos Of an appropriate or pertinent nature.
decorous Marked by behaviour, manners, etc., regarded as proper, tasteful, and in accordance with accepted standards; becoming, seemly.
fitting Appropriate; suitable.
relevant Related, connected, or pertinent to a topic.
seemly Of behavior, appropriate; suited to the occasion or purpose; becoming.