莫大

mòdà
  1. greatest
  2. most important

CEDICT

  1. (formal) of unparalleled largeness; the biggest; the greatest; the utmost
  2. of unparalleled largeness; the biggest; the greatest; the utmost
  3. short for 莫斯科國立大學／莫斯科国立大学 (Mòsīkē guólì dàxué, “Moscow State University (MSU)”)

Wiktionary

沒有比這個再大。即最大的意思。

重編國語辭典

Entry Composition

1 莫 mò
  1. do not
  2. there is none who
2 大 dà
  1. big; large; great
  2. older (than another person)
  3. eldest (as in 大姐 dàjiě)
  4. greatly; freely; fully
  5. (dialect) father
  6. (dialect) uncle (father's brother)

Containing this entry

功莫大焉 gōngmòdàyān no greater contribution has been made than this (idiom)
哀莫大於心死 āimòdàyúxīnsǐ
  1. nothing sadder than a withered heart (idiom attributed to Confucius by Zhuangzi 莊子 Zhuāngzǐ)
  2. no greater sorrow than a heart that never rejoices
  3. the worst sorrow is not as bad as an uncaring heart
  4. nothing is more wretched than apathy
過而能改，善莫大焉 guòérnénggǎi,shànmòdàyān If one can change after making a mistake, there is nothing better (idiom)

Related entries

太 tài
  1. highest
  2. greatest
  3. too (much)
  4. very
  5. extremely
太棒了

Awesome.

Source: Tatoeba

最多 zuìduō
  1. at most
  2. maximum
  3. greatest (amount)
  4. maximal
他最多能拿到第三名。

At best he may take third place.

Source: Tatoeba