93492
This is specifically for い-adjectives, as な-adjectives work this way.  
For example, when I want to say something is not delicious I'd usually say
**おいしくない**.  
Would it be possible to use **おいしい じゃありません** and would it mean the same thing?
CC BY-SA 4.0
2022-02-21T15:42:27.580
93490
2022-02-21T23:22:03.040
2022-02-21T18:11:38.047
5229
50652
question
grammar politeness negation i-adjectives
When conjugating adjectives, can we use the normal form of the adjective and use the copula です to indicate its form?
It would mean the same thing, but wrong in terms of grammar.

* * *

おいしくない:

  * Question おいしくない？ (Delicious, isn't it?) valid
  * Statement おいしくない (Not delicious) valid

* * *

おいしいじゃありません:

  * Question おいしいじゃありません？ (Delicious, isn't it?) valid
  * Statement おいしいじゃありません **Not valid**

The question "おいしいじゃありません？" is a unique edge case, and you might never use it
in your life.

The statement "おいしいじゃありません" looks/sounds wrong although the message is clear
you are not enjoying that meal.

* * *

Possible statements to deny おいしい:

  * おいし **く** ありません

Following works too:

  * おいしいごはんではありません
  * おいしいとは思いません

* * *

**Edit** :

The above are basics. Hate to add complexity but there is yet another edge
case where one is happy with the meal and say:

  * Statement おいしいじゃありません (Isn't this delicious)
  * Statement おいしいじゃありませんこと (Isn't this delicious)

This carries the same logic as the question, but is not a question. It's
somewhere between a rhetorical question and a firm statement. These are
advanced expressions which may be used with enough context and correct
pronunciation.
CC BY-SA 4.0
2022-02-21T23:05:33.203
93492
2022-02-21T23:22:03.040
2022-02-21T23:22:03.040
48366
48366
93490
answer