brittlely

adverb2

1. •
   In a brittle way, shattering easily under stress.

   • He was flung full-length against ice that cracked brittlely under his impact. — 1930
2. •
   In a manner that is emotionally fragile, or easily offended.

   • ‘Don’t get upset. They’ll start asking questions and I know you hate people being in your business.’ Ola laughed brittlely as she blew her nose. — 2023