Katsuyo

な-adjective

適当てきとう

tekitou

suitable · N4

適当 (てきとう, tekitou) — suitable — is a -adjective: 適当だった (past), 適当じゃない (negative), 適当で (te-form), 適当です (polite).

It also means proper; appropriate.

How 適当 conjugates · -adjective

Nothing drops: the ending attaches to the whole word.

A -adjective is a noun-like word plus a copula, and the copula is what conjugates.

適当 whole word + ending
適当だった適当だったpast · It was suitable. 適当じゃない適当じゃないnegative · It isn't suitable. 適当適当te-form · It's suitable and … 適当なら適当ならif · If it's suitable, ... 適当です適当ですpolite present · It's suitable.

Before a noun it takes , which is what names the class.

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

PLAIN

FormConjugationAudio
present N5 It's suitable. 適当だ てきとうだ tekitouda
past N5 It was suitable. 適当だった てきとうだった tekitoudatta
negative N5 It isn't suitable. 適当じゃない てきとうじゃない tekitoujanai
te-form N5 It's suitable and … 適当で てきとうで tekitoude
past negative N4 It wasn't suitable. 適当じゃなかった てきとうじゃなかった tekitoujanakatta
cond. なら N3 If it's suitable, ... 適当なら てきとうなら tekitounara
cond. たら N3 When it's suitable, ... 適当だったら てきとうだったら tekitoudattara

POLITE

FormConjugationAudio
present N5 It's suitable. 適当です てきとうです tekitoudesu
past N5 It was suitable. 適当でした てきとうでした tekitoudeshita
negative N5 It isn't suitable. 適当じゃないです てきとうじゃないです tekitoujanaidesu
past negative N4 It wasn't suitable. 適当じゃなかったです てきとうじゃなかったです tekitoujanakattadesu