1. In a parenthetical manner
   "he added parenthetically that he would not attend the wedding ceremony"

See also: parenthetical

• head tone
• head trip
• head up
• head voice
• head-in-the-clouds
• head-on
• head-shrinker
• head-to-head
• head-up display
• headache
• headache powder
• headachy
• headband
• headbanger
• headboard
• headbutt
• headcase
• headcheese
• headcount
• headcounter
• headdress
• headed
• header
• headfast
• headfirst