How to read: ただいちろう
Pronunciation: 
Names and idioms with total stroke of 21:
咲登 早潟 街香 辰輔 指診
Names and idioms similar to 唯一郎:
一保 一加 一迫山崎 笑一都 一布衣
Yojijukugo(idioms with 4 Kanji characters) including 唯一郎:
一字半句 一夜十起 碧落一洗
Idioms including 唯一郎:
一旦緩急あれば 一か八か 一つ穴の狢