I recently came across the word いい加{か}減{げん} for the first time. Here's the definition I found:
いい加{か}減{げん}:
1. 無{む}責{せき}任{にん}で、当{あ}てにならない様{よう}子{す}。
例 仕{し}事{ごと}の後{あと}始{し}末{まつ}がいい加{か}減{げん}で困{こま}る。
2. ほどよい様{よう}子{す}。
例 お湯{ゆ}の温{おん}度{ど}がちょうどいい加{か}減{げん}になった。
3. かなり。大{だい}分{ぶ}。
例 いい加{か}減{げん}疲{つか}れた。
I.e.: 1. irresponsible, unreliable; 2. moderate; 3. quite, rather, considerably.
My problem is that I have a hard time fitting any of these definitions in the contexts where I first ran into いい加減.
One of these contexts was in one of the definitions of yet another word:
大{たい}抵{てい}:
...
3. ほどほどにする様{よう}子{す}。いい加{か}減{げん}。
例 わがままもたいていにしなさい。
...
If たいてい is another word for いい加減, then what could the example sentence above possibly mean? Since "ほどほどにする様子" appears alongside いい加減 in this definition, it would seem to me that the definition of いい加減 that applies here is the second one above (i.e. "moderate"), but then the last example sentence above would translate to "Be moderately selfish." Is this right? Somehow, it does not strike me as the typical example sentence in a dictionary. (If I attempt fitting any of the other two definitions of いい加減 into this example sentence, the results are even worse.)
Finally, here is another context in which I ran into いい加減. Yes, it's yet one more definition.
適{てき}当{とう}:
...
3. いい加{か}減{げん}な様{よう}子{す}。
例 適当なことを言う。
Again, I am left to figure out which of the definitions of いい加減 is intended here. Now, one other definition of 適当 is something like "appropriate, suitable, fitting," and it would be surprising that the same word could also mean "irresponsible, unreliable." This argues against the first definition of いい加減. On the other hand, I can't figure out a way to make the third definition of いい加減 fit into the last example sentence above. Therefore, by a process of elimination, I conclude that this sentence must mean something like "to say something moderate."
To sum up, how would one translate the following sentences:
- わがままもたいていにしなさい。
- 適当なことを言う。
...and how do these translations fit with the definitions of たいてい, 適当, and いい加減 given above?