で十分だ

is enough

→ で
phrase Uncommon #12,102
is enough Used after something to say that it is sufficient or that no more is needed. The particle で indicates what is sufficient or what something is sufficient with.
JA: これで十分だ。
EN: This is enough.

この部屋の広さで十分だ。

This room is spacious enough.

もうそれで十分だ。

That’s enough already.

キムチで十分だ

Kimchi will suffice.

— タクシー運転手 約束は海を越えて (2017)

一度で十分だ 連行しろ!

That's enough. Take him away!

— シカゴ (2002)

一度で十分だわ

Once is enough for me.

— ザ・マン・フロム・アース (2007)

今の俺には こいつで十分だ

This is good enough for me right now.

— The Garden of Sinners: Paradox Spiral (2008)