overestimate
verb (used with object)
to estimate at too high a value, amount, rate, or the like.
Used to describe an ongoing action or state that is currently taking place in the immediate present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Perhaps I am overestimating my ability—I probably am—but at least I mean to attempt it.
From Within Prison Walls being a narrative during a week of voluntary confinement in the state prison at Auburn, New York by Thomas Mott Osborne