adjective·n3

退屈たいくつ

Boredom; bored/boring (feeling uninterested or causing lack of interest)

退屈たいくつだ。

映画えいがは退屈たいくつだ。

Conjugations

dictionary退屈だtaikutsu da

is bored / is boring

negative退屈じゃないtaikutsu ja nai

is not bored / not boring

past退屈だったtaikutsu datta

was bored / was boring

past negative退屈じゃなかったtaikutsu ja nakatta

was not bored / was not boring

te form退屈でtaikutsu de

and / being bored (connecting form)

adverb退屈にtaikutsu ni

boringly / in a bored manner