最高【さいこう】
best, supreme, wonderful, finest, highest, maximum, most, uppermost, supreme
最近【さいきん】
recently, lately, these days, nowadays, right now, nearest, closest
最大【さいだい】
biggest, greatest, largest, maximum
最初【さいしょ】
beginning, outset, first, onset
最後【さいご】
end, conclusion, last, final, latest, most recent, no sooner than, once, right after (often having negative consequences), one's final moments
最終【さいしゅう】
last, final, closing, last train (bus, flight, etc.; of the day)
最も【もっとも】
most, extremely
最低【さいてい】
least, lowest, minimum, worst, awful, horrible, nasty, disgusting, at the very least
最悪【さいあく】
worst, horrible, horrid, awful, terrible, in the worst case, if worst comes to worst
最新【さいしん】
latest, newest, late-breaking (news)
最大限【さいだいげん】
maximum, to the maximum degree, to the full
最小限【さいしょうげん】
minimum, lowest, minimal, least
最適【さいてき】
most suitable, optimum, optimal, best
最先端【さいせんたん】
cutting edge, leading edge, forefront, state of the art, tip, end
最強【さいきょう】
strongest
最上【さいじょう】
best
最小【さいしょう】
smallest (in size, degree, etc.), least, minimum, minimal
最盛期【さいせいき】
golden age, prime, heyday, height of prosperity, season (for fruit, vegetables, etc.), best time
最期【さいご】
one's last moment, one's death, one's end
最良【さいりょう】
the best, ideal