hard, tough, stiff / stubborn

confrontation / opposition / conflict / dispute / standoff

time / an event, case, occasion, moment; a specific period in time / a time of something / a season / a tense / (literary) the time during which a narrative takes place

opposition / conflict, hostility

強さ: strength, power

篤良: a male given name

Classical Japanese form of つよい (tsuyoi)

剛, 強, 毅, 剛史, 剛士, 剛志: a male given name

against one's will

立位: standing sex position