A speech full of too many words is-
a big speech
maiden speech
a verbose speech
an unimportant speech
Explanation:
Correct Answer is: a verbose speech
`A speech full of too many words` এর One word substitution বা এক কথায় প্রকাশ হলো `a verbose speech` বা `বাগাড়ম্বরপূর্ণ কথা`।