arduum
argentum

ar·du·us

  1. difficult
  2. proudly elevated

Synonyms for arduus

  • difficilis – difficult, hard, troublesome

Similar to arduus

  • arduum – steep place, the steep
  • carduus – thistle
  • assiduus – unremitting
  • arbustum – a vineyard planted with trees
  • ardens – ablaze, burning
  • argutus – acute
  • ardor – ardor, impatience