Katsuyo

い-adjective

脆いもろい

moroi

brittle · N1

脆い (もろい, moroi) — brittle — is an -adjective: もろかった (past), もろくない (negative), もろくて (te-form), もろいです (polite).

It is usually written in kana: もろい rather than 脆い. It also means fragile; weak.

How もろい conjugates · -adjective

Drop the final , then add the ending.

Every form is built on the stem もろ. The one that isn't: the polite present, which is the whole word plus です.

もろ dropsstem + ending
もろかったもろかったpast · It was fragile. もろくないもろくないnegative · It isn't fragile. もろくてもろくてte-form · It's fragile and … もろければもろければif · If it's fragile, ... もろいですもろいですpolite presentkeeps the い

Every -adjective works this way. The one exception is いい, which conjugates from its older form よい.

N5 N tags give the JLPT level at which the game starts quizzing a form.

Aa Dimmed forms are too rare in everyday Japanese for the game to quiz.

PLAIN

FormConjugationAudio
present N5 もろい 脆い moroi
past N5 It was fragile. もろかった 脆かった morokatta
negative N5 It isn't fragile. もろくない 脆くない morokunai
te-form N5 It's fragile and … もろくて 脆くて morokute
past negative N4 もろくなかった 脆くなかった morokunakatta
cond. ば N3 If it's fragile, ... もろければ 脆ければ morokereba
cond. たら N3 When it's fragile, ... もろかったら 脆かったら morokattara

POLITE

FormConjugationAudio
present N5 もろいです 脆いです moroidesu
past N5 It was fragile. もろかったです 脆かったです morokattadesu
negative N5 It isn't fragile. もろくないです 脆くないです morokunaidesu
past negative N4 もろくなかったです 脆くなかったです morokunakattadesu