How to say "expressly" in Japanese

• わざわざJLPT N1approx.Common
  adverbCovers 'expressly' meaning 'specially, deliberately': doing something that takes trouble or effort, often going out of one's way when it is not strictly necessary, as when making a special trip to see someone.
  わざわざおいでにならなくて結構けっこうです。↗

  Don't bother to come to my house.
• 特にとくにJLPT N4approx.Common
  adverbCovers 'expressly' meaning 'particularly, in particular': singling one thing out from others, as when picking out one item among several. It carries no nuance of taking trouble or going out of one's way.
  私は音楽おんがく、特とくにロックが大好だいすきだ。↗

  I love music, especially rock.

Use 「わざわざ」 for 'expressly' meaning deliberately or specially, taking the trouble or going out of one's way; use 「特に」 when it means 'particularly' or 'in particular', singling one thing out from others.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• わざわざexpressly
• 特にとくにparticularly