> {} ****
is the colloquial pronunciation of:
> ****
and I assure you that is even listed in Jisho.
<
All by itself, means " **easy** ", " **slack** ", " **superficial** " etc. Note that there is **_no kanji_** for the word and it has nothing to do with {}. (I will come back to this point about at the end.)
With certain adjectives, however, is attached like a suffix and when used this way, it just emphasizes the meaning of the preceding adjective in a very informal/colloquial way.
Those "compound adjectives" include: (" **very weak** "){}{" **facile** ", " **optimistic** ", " **too green** " etc.}{}(" **half-hearted** "), etc. Honestly, I could not think of another right now. You cannot attach it to every adjective.
Lastly, there are two different .
1) colloquial form of meaning "half-hearted" as I stated above.
2) colloquial form of {} meaning "pale-looking".