noun, noun which may take the genitive case particle 'no'
Often used in compounds like 至上主義 (supremacism) or as a no-adjective meaning 'the highest' or 'ultimate'. Slightly formal.
He lived a life devoted to art above all else.
Safety is the paramount issue.
For him, time with his family was the supreme joy.
最上 and 至上 are both formal terms for 'the highest', but 最上 is used for rankings or grades (最上級) while 至上 stresses an unconditional, supreme value or principle.
至上 means 'supremacy' or 'top priority' as in 至上命令, while 至高 focuses on the quality of being sublime or supreme rather than priority.
From the kanji 至 (reach, arrive) and 上 (above, upper), literally 'reaching the top'. The exact historical derivation is uncertain, but the compound has been used in formal and philosophical contexts to denote ultimate supremacy.
That company follows a management policy that treats efficiency as paramount.