Our English has changed with the years so that many words now connote more than they did originally. This is true of the word monotonous. From “having but one tone,” it has come to mean more broadly, “lack of variation.”
The monotonous speaker not only drones along in the same volume and pitch of tone but uses always the same emphasis, the same speed, the same thoughts—or dispenses with thought altogether. I am sure you have been in the audience of one of these speaker’s from time to time and have fought the urge to take a nap (or perhaps succumbed to the nap). And I’m equally sure you do not want to be guilty of being one of these speakers. So, what can you do?
If a speaker uses only a few of his powers, it points very plainly to the fact that the rest of his powers are not developed. Monotony reveals our limitations. Monotony means that we have not studied how to speak, that we have not paid attention to the message that we want to give and that we have not practiced.
If you wish to teach or influence men, you must please them, first or last. Strike the same note on the piano over and over again. This will give you some idea of the displeasing, jarring effect monotony has on the ear. The dictionary defines “monotonous” as being synonymous with “wearisome.” That is putting it mildly. It is maddening
We remove monotony in dress by replenishing our wardrobes. We avoid monotony in speech by multiplying our powers of speech. We multiply our powers of speech by increasing our tools. The speaker has certain instruments and tools at his command by which he builds his argument, plays on the feelings, and guides the beliefs of his audience.
To your speaking success