彼はそれ以上怒りを押さえられなかった。

he; him; his; boyfriend

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

that (indicating an item or person near the listener, the action of the listener, or something on their mind); it; that time; then; there (indicating a place near the listener); you

not less than; ... and more; ... and upwards; beyond ... (e.g. one's means); further (e.g. nothing further to say); more than ... (e.g. cannot pay more than that); above-mentioned; foregoing; since ...; seeing that ...; this is all; that is the end; the end

anger; rage; fury; wrath; indignation

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to pin something down; to hold something down; to hold something back; to stop; to restrain; to curb; to seize; to grasp; to arrest; to gain control of something; to govern; to keep down (e.g. information); to suppress; to catch happening; to determine (important points); to find (proof); to understand