Definition of Telltale
something that is a blatant indicator of the state of something
Examples of Telltale in a sentence
The rotted wood of the walls was a telltale sign of the building’s old age, and would need to be repaired if I wanted it to look new again.
If you want to make sure someone is not lying to you, you should look for telltale signs of nervousness such as fidgeting and averted eyes.
Her nasty tone was a telltale sign of her irritation, even though she didn’t say anything particularly mean.
Your facial expression is often a telltale factor that lets others know how you are feeling even if you do not say anything at all to them.
Your grades in school are viewed as a telltale indicator of your overall knowledge, even though it is not always an accurate indicator of your potential.
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