～わけではない (〜wake dewa nai)
Explanation
Not necessarily; it doesn't mean that ~.
Formation
Verb-plain + わけではない, い-Adjective + わけではない, な-Adjective + だわけではない, Noun + だわけではない
Detailed Explanation
The ～わけではない grammar point is used to express that something is not necessarily the case or 'it doesn’t mean that...' It negates a broad assumption or generalization.
Examples
彼が勉強しないわけではないが、成績があまり良くない。
Kare ga benkyou shinai wake dewa nai ga, seiseki ga amari yoku nai.
It's not that he doesn't study, but his grades aren't very good.
このレストランが高いわけではないけど、毎日通うには少し高いね。
Kono resutoran ga takai wake dewa nai kedo, mainichi kayou ni wa sukoshi takai ne.
It's not that this restaurant is expensive, but it's a bit too pricey to go there every day.
彼女が優しくないわけではないが、時々話し方がきついことがある。
Kanojo ga yasashikunai wake dewa nai ga, tokidoki hanashikata ga kitsui koto ga aru.
It's not that she's unkind, but sometimes her manner of speaking can be harsh.
彼が忙しいわけではないが、時間を上手に使えていないようだ。
Kare ga isogashii wake dewa nai ga, jikan o jouzu ni tsukaete inai you da.
It's not that he's busy; he just doesn't seem to use his time effectively.
Grammar content sourced from hanabira.org.