A single word for overreaching / overestimating ones own abilities?

Question

Is there a single word slang or otherwise that can describe

A person who continually overreaches or overestimates their own abilities.

and example usage

"Bob's such a word: He always injures himself."

The closest non-slang term I could find was narcissism, however, this isn't really appropriate. Rather, an expected characteristic for someone with this trait.

In sporting slang, there are several terms:

• Kook (generic extreme sports, slightly abused in this context)
• Jerry (in snowsports e.g. "JerryOfTheDay")
• Tryhard (strictly two words in my opinion)

Answer 1

Q: Is there a single word slang or otherwise that can describe A person who continually overreaches or overestimates their own abilities.

For myself it would depend largely on how and why I was planning to use it.

I've pondered that same question before regarding which word to use, and it seems that after considering presumptuous, impudent and all the other entries in the thesaurus, I always end up using overconfident.

Answer 2

Conceit

Noun: excessive pride in oneself.

Ex:"he was puffed up with conceit"

Similar: vanity narcissism conceitedness self-love self-admiration self-adulation self-regard egotism egoism egocentricity egomania pride arrogance hubris boastfulness cockiness self-importance immodesty self-satisfaction smugness complacency amour propre big-headedness

https://www.google.com/search?q=coneit&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari

Answer 3

Prima donna may come close, Oxford English Living Dictionary defines it as:

A very temperamental person with an inflated view of their own talent or importance.

This may not be exactly what you look for, since it includes the part very temperamental, but the latter part of the definition surely fits.

The rest of this answer mistakenly comes with adjectives rather than a noun, I'll leave it just in case it is of interest. Collins Dictionary defines self-conceited as:

having an excessive sense of one's own importance, abilities and value

Another word to describe it would be overconfident, Collins Dictionary defines it as

excessively confident (British English), or

confident without adequate reason; too confident (American English)

To put the previous definition in context, one of the definitions for confident, according to Collins Dictionary:

If a person or their manner is confident, they feel sure about their own abilities, qualities, or ideas.

Answer 4

Hubris

exaggerated pride or self-confidence

Source: Merriam Webster