ひどく (translations)→ acutely almost as atrociously awful bad completely curiously deeply definitely disproportionately distastefully enormously exceedingly excruciatingly extraordinarily extreme extremely genuinely great grossly hard heavily heavy highly incredibly indeed infinitely intense long magnificent monumentally nicely painfully palpably particular particularly passionately rather real really royally serious severe severely sincerely so somehow startlingly such sufficiently surprisingly terribly throughly thundering utterly very wildly wonderfully worse
まことに (translations)→ cruelly entirely most peculiarly surely totally truly
根底から (translations)→ profound radically
心底 (translations)→ deep devoutly genuine heart heartily strongly thoroughly
容赦なく (translations)→ brutal harshly let-down mercilessly relentless relentlessly remorselessly ruthlessly unmercifully
