Greetings to you huge Japanese lovers! Are you feeling this giant potential for today’s learning possibilities? After this article you will be 00.1% more knowledgeable in Japanese, isn’t that exciting. Today we are going to be looking at the Japanese word “dekai でかい” which will let you express the concept of “huge” in Japanese.

Contents
How to use dekai でかい to say “huge; big; gargantuan” in Japanese
We are going to be breaking down today’s lesson into 5 main segments to give you a really streamlined and efficient way of learning about dekai でかい. Check it out:
- What does dekai でかい mean and how can i use it? A basic understanding of the phrase.
- How can I use dekai でかい in a sentence? Let’s learn about the grammar
- Example sentences with dekai でかい. Let’s learn through examples.
- A great study technique to master dekai でかい. Putting it into practice.
- A summary of todays online Japanese lesson on dekai でかい. Ensure you haven’t missed anything.
If you feel the need to want to skip ahead please do so. We would recommend that you work through this online Japanese article from the beginning however for best results.
Let’s jump into the first section and learn the meaning of dekai でかい
What does dekai でかい mean and how can i use it?
A basic understanding of the phrase.
So dekai でかい, which can also be said as dekai でっかい, means huge, giant, humongous in Japanese. It sounds very similar to a word you have most likely come across which also means “big”, takai. They have really similar meanings much like how the english words, huge and big are similar.
Dekai でかい is an i adjective meaning it can be used before a noun or at the end of a sentence.
We will now look at how to build a sentence with dekai でかい so we can learn more about the grammar too.
How can I use dekai でかい in a sentence?
Let’s learn about the grammar
Let’s take a look at a sentence that uses dekai でかい. We will start with something simple and move on to more complex sentences in the next section.
それはでかい犬だろう
Sore wa dekai inu darou
That’s a huge dog!
This relatively simple sentence shows you exactly how to use dekai でかい with another noun to describe said noun as “huge”. Try to imagine this big dog vividly in your mind and say to yourself dekai でかい over and over again.
Think of another simple sentence like this now and try and write it down, let us know what you come up with in the comments.
We will now look at some other sentence examples to give us a deeper understanding of dekai でかい in different contexts.
Example sentences with dekai でかい.
Let’s learn through examples.
Take a look at these sentence examples using dekai でかい. Be sure to take notice of where dekai でかい. Is place within the sentence too.dekai でかい.
In this first example the speaker is saying how the girls attitude it becoming bigger (better)
彼女は徐々に態度がでかくなった。
Kanojo wa jyojyo ni taido ga dekakunatta
She is getting better by degrees.
In this example the speaker is saying that the person in question has been talking a “big” game. Do you know someone like this? Or perhaps it could be you.
あいつでかいことばかりい言ってる.
Aitsu dekai koto bakari itteru
You’re always talking a big game
In this sentence the speaker is talking about a “big” item not fitting on a bike. Wonder what item it could be? Dare to take a guess?
そんなデカイのがチャリの荷台に乗るわけないだろ。
Sonna dekai no ga chari no nidai ni noru wake nai darou
There's no way one that big is going to go on a bike's luggage rest.
These sentences give you some ideas of how dekai でかい can be used. Let’s look now at getting you to start using it for yourself.

A great study technique to master dekai でかい.
Putting it into practice.
So now we need to learn all about how to master this information. Just reading this article and thinking you will remember it forever is definitely not enough.
You need to be active in putting it into practice. Firstly you are going to want to read over all of today’s example sentences and write them down on a piece of paper.
Next think in your head of 20 things you would describe as dekai でかい.
Now take those 20 things and make sentences out of them over the next few days.
After finishing this exercise you should now have mastered the art of dekai でかい and be able to use it masterfully without even having to think about it.
A summary of today’s online Japanese lesson on dekai でかい.
Ensure you haven’t missed anything.
Here is a quick summary of today’s lesson to ensure we haven’t missed anything.
Dekai でかい, which can also be said as dekai でっかい, means huge, giant, humongous in Japanese.
It sounds very similar to a word you have most likely come across which also means “big”, takai.
They have really similar meanings much like how the english words, huge and big are similar.
Dekai でかい is an i adjective meaning it can be used before a noun or at the end of a sentence.
Remember to run through today’s Japanese study technique too.
So then, that brings us to the end of today’s online Japanese lesson from Bondlingo, do you feel 0.001 percent more knowledgeable now? We really hope that you have learnt something of use today and that you will continue to study with us in the future. If you have any comments or suggestions on upcoming topics that you would like us to write about be sure to get in touch with us. We are really happy that you are taking the time to go out and actively learn Japanese like this. Keep it up as this determination is what will get you to your goal! Until the next time Japanese learners have an awesome day.