Fresh, innocent, or naive in a charming way; showing the unpolished, sincere quality of someone new to something.
初々しい挨拶に会場から温かい拍手が起こった。
Her fresh, somewhat shy greeting drew warm applause from the audience.
新人俳優の初々しい演技が観客の心をつかんだ。
The rookie actor's naive, heartfelt performance won over the audience.
付き合い始めの二人は初々しくて微笑ましい。
The couple just starting to date are so fresh and endearing.
面接で見せた彼女の初々しい態度が好印象だった。
Her innocent attitude shown in the interview left a good impression.