as·sid·u·ous [? síjjoo ?ss] adjective very careful: showing persistent and hard-working effort in doing something [Mid-16th century. < Latin assiduus < assidere (see assess), in a late sense "apply yourself"] -as·sid·u·ous·ly, adverb -as·sid·u·ous·ness, noun Word Key: Synonyms See careful.
![Assiduous- Definition:as·sid·u·ous [? síjjoo ?ss] adjective very careful: showing persistent and hard-working effort in doing something [Mid-16th century. < Latin assiduus < assidere (see assess), in a late sense](https://wordstodescribesomeone.com/wp-content/uploads/2016/10/Assiduous-definition.png "Assiduous definition")
![Czechoslovakian - Definition:
Czech·o·slo·vak·i·an [chèk?sl? v?kee ?n, chèk? sl? v?kee ?n] noun (plural Czech·o·slo·vak·i·ans) 1. peoples Same as Czech (sense 2) 2. language language of Czechoslovakia: either Czech or Slovak, the languages of the former Czechoslovakia adjective peoples of Czechoslovakia: relating to the former Czechoslovakia, or its peoples, languages, or cultures](https://wordstodescribesomeone.com/wp-content/uploads/2017/03/Czechoslovakian-definition-100x75.png "Czechoslovakian")
