This is the 1619th most frequent Polish word.
miesięcznych
"Monthly" (genitive plural or adjectival form in Polish).
Shows usage as an adjective modifying the noun "calendars," indicating a time-related attribute.
Mam plan tygodniowy, ale wolę korzystać z miesięcznych kalendarzy.
I have a weekly plan, but I prefer using monthly calendars.
Used as an adjective describing the nature of the fees respective to a monthly basis.
Koszt miesięcznych opłat za wynajem wzrósł w tym roku.
The cost of monthly rental fees increased this year.
Functions as an adjective qualifying "results" in terms of the time frame they represent.