This book is very interesting.
この考え方は古いかもしれません。
This way of thinking might be old-fashioned.
pre-noun adjectival
last (couple of years, etc.); these; past
Used with time expressions to refer to a recent stretch of time, often implying 'the last few...' or 'these past...'. Common with words like 数日, 数年, ところ.
この数年、海外旅行に行っていない。
I haven't traveled abroad these past few years.
このところ忙しくて休めない。
I've been so busy lately I can't take a break.
pre-noun adjectival
Emphatic, accusatory, or insulting use before a noun referring to a person. Often translates to 'you' in English, but grammatically still a pre-noun adjective. Strongly colloquial and rude.
These past few days I've been so busy I've barely slept.
The weather hasn't been very good lately.
You idiot, what are you doing!
purple; violet
Rare kanji form; learners should use この.