言いたく

want to say, feel like saying

→ 言う
言い say + たく Desiderative (want to)
verb Rare #39,773
want to say, feel like saying The continuative form of 言いたい, used before ない to mean “not want to say” and before なる to mean “start to feel like saying.”
JA: 本当のことを言いたくない。
EN: I don’t want to tell the truth.
Conjugation of 言う

そんなこと、彼には言いたくありません。

I don't want to say something like that to him.

君は何事につけ一言言いたくなる、そうだろ?

You always feel compelled to put in your two cents about everything, don’t you?

言いたくはないが…マークは死んだ

I hate to say it, but... Mark is dead.

— オデッセイ (2015)