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)
  • M-W lists the agent noun overreacher. – Edwin Ashworth Mar 14 '18 at 0:12
  • bonehead? joker? bluffer? big talker? – lbf Mar 14 '18 at 1:10
  • Per your example, the expression "he bites off more than he can chew" is a possibility. – Xanne Mar 14 '18 at 1:39
  • Because there isn't, I can't explain why not. – Robbie Goodwin Mar 27 '18 at 21:04

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.


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.

  • The OP test sentence requires a noun. – Nigel J Mar 14 '18 at 1:41
  • @NigelJ thanks for pointing that out, I added a noun which may be suitable. – JJJ Mar 14 '18 at 1:54


exaggerated pride or self-confidence

Source: Merriam Webster

  • Bob’s such a hubris... – Jim Mar 14 '18 at 2:06
  • is that not grammatically correct? – Archie Azares Mar 14 '18 at 2:12
  • 2
    You can have hubris, you can be accused of hubris, you can display hubris, but you cannot be a hubris. – Jim Mar 14 '18 at 2:16
  • correct me if I'm wrong but hubris can also be defined as dangerous overconfidence – Archie Azares Mar 14 '18 at 2:18
  • 1
    You are not wrong, but you can’t be” a dangerous overconfidence” either. – Jim Mar 14 '18 at 2:20

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