たゆみない
tayuminai

i-Adjective

1. unslacking; unceasing

Usually Written in Kana
イベントが成功 せいこうしたのは貴殿 きでんのたゆみ 努力 どりょく献身 けんしんのおかげです。
ibentoga sēkō shita nowa kidenno tayumi nai doryokuto kenshinno okagedesu.
It was your tireless efforts and devotion that made the event successful.
Other forms: