面白い
おもしろい
interesting, amusing
i-adjective
Conjugation Table
Present
面白い
Negative
面白くない
Past
面白かった
Past Negative
面白くなかった
Te Form
面白くて
Adverbial
面白く
Conditional
面白ければ
Presumptive
面白いでしょう
Example Sentences
この本は面白いです。
This book is interesting.
Kono hon wa omoshiroi desu.
昨日の映画は面白くなかったです。
Yesterday's movie was not interesting.
Kinō no eiga wa omoshiroku nakatta desu.
その話は面白くて、びっくりしました。
That story was interesting, and I was surprised.
Sono hanashi wa omoshirokute, bikkuri shimashita.
Grammar Notes & Usage Tips
•Conjugation Tip:** As an i-adjective, 面白い follows a specific pattern for conjugation. To say something "was interesting," change the ending to 面白かった (おもしろかった), and for "is not interesting," it becomes 面白くない (おもしろくない).
•Particle Pairing:** When using 面白い to describe a noun, simply place it before the noun, like 面白い本 (おもしろいほん, interesting book). If you're stating that something is interesting on its own, use the particle が, as in この映画が面白い (このえいががおもしろい, this movie is interesting).
•Negative Form Caution:** A common mistake is forgetting to adjust the i-adjective ending when making it negative or past negative. For "was not interesting," use 面白くなかった (おもしろくなかった) instead of combining negative and past forms incorrectly.
•Comparative Usage:** To say "more interesting," add ほうが to compare two items, like 映画のほうが面白い (えいがのほうがおもしろい, the movie is more interesting). Remember that 面白い itself doesn't change, just the sentence structure does.
•い-adjective: Conjugates by changing the い ending