| beta-hydroxylalanine(noun, substance, matter, biochemistry) |
| brusque(adjective, mean, tough, sharp, harsh) |
| burning |
| contemptuous(adjective, mean, sharp, ironic, sarcastic) |
| corroding(adjective, harsh, acidic, acrid, corrosive) |
| crystalline amino acid(noun, substance, matter, biochemistry) |
| curmudgeonly |
| cynical(adjective, mean, tough, sharp, nasty) |
| disagreeable(adjective, nasty, unpleasant, distasteful, revolting) |
| fierce(adjective, strong, intense, powerful, deep) |
| hot |
| hurtful(adjective, severe, sharp, nasty, behavior) |
| nonessential amino acid(noun, substance, matter, biochemistry) |
| offensive(adjective, mean, evil, sharp, nasty) |
| piercing(adjective, strong, sharp, nasty, intense) |
| poisonous |
| querulous |
| rancorous(adjective, speech, unfriendly, bitter, belligerent) |
| scornful(adjective, mean, sharp, ironic, sarcastic) |
| serine(noun, substance, matter, biochemistry) |