Was heißt »insistent« auf Englisch?

Das Adjektiv »insistent« lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Synonyme

ausdauernd:: persevering; persistant; stamina; tenacious
beharrlich:: persistent
hartnäckig:: adamantine; besetting; bulldog; confirmed; do-or-die; dogged; doggedly; intractable; obstinate; obstinately; persevering; persistent; pertinacious; pertinaciously; refractory; stiff-necked; strongheaded; stubborn; stubbornly; tenacious; tough
konstant:: constant; constantly
standhaft:: steadfast
unablässig:: incessant; unremitting
unbeirrt:: enduring
unermüdlich:: indefatigable; tireless
unverdrossen:: steady

Tom was most insistent.
"You were so insistent that I make you a cup of coffee, but it's been sitting there untouched for half an hour!" "Oh, I completely forgot. Sorry!"
Tom was very insistent.
He was very insistent.
She was very insistent.