A speech of too many words in called-

₻ A speech of too many words is called a verbose speech.
Verbose speech
Verbose speech refers to a style of speaking or writing that is characterized by using an excessive number of words or being unnecessarily long-winded. In other words, a speech that contains more words than necessary.

বাংলা অর্থ- বাগাড়ম্বরপূর্ণ; শব্দাড়ম্বরপূর্ণ:
a verbose speech/speaker/style. verbosely (adverb) বাগাড়ম্বরপূর্ণরূপে।
verboseness, verbosity [ভাক্সাটি] (noun(s)) [uncountable noun] বাগাড়ম্বর; শব্দাড়ম্বর; বাগ্নিস্তার; বাগ্বাহুল্য।

Reference: Merriam Webster & Word web dictionary.