1. in a manner lacking expression, emotion, or variation in pitch

Examples

• She answered the phone tonelessly, clearly exhausted from the long day.
• The robot spoke tonelessly, delivering the announcement without any inflection.
• He read the news tonelessly, trying to remain professional despite the tragic content.
• The witness testified tonelessly, staring straight ahead throughout the questioning.
• She recited the poem tonelessly, having memorized it without understanding its meaning.
• The automated voice responded tonelessly to each customer inquiry.