acerbic - adjective
acerbic - thesaurus
acerb
acid
acrid
astringent
bitter
blistering
caustic
sulfurous
sulphurous
virulent
vitriolic
Scrabble score = 13
"I ran the trial with a small group of students over three weeks before the summer holidays," she says. "I quickly saw the benefits, and signed up."
King's Leadership Academy, Warrington