This is the 14772nd most frequent German word.
passender
"Passender" means "more suitable" or "more appropriate" in English.
Here, "passender" is used as a comparative adjective to show the relative suitability of an item for a specific context.
Dieses Hemd ist passender für das Treffen.
This shirt is more suitable for the meeting.
In this sentence, "passenderen" follows the comparative form governed by the case it is in, referring to a more appropriate time.
Ich suche einen passenderen Zeitpunkt, um zu sprechen.
I am looking for a more suitable time to talk.
Here, "passenderen" is used in the context of an adjective modifying a plural noun, conforming to German adjective declension rules.