1. In a petulant manner
   - testily, petulantly, pettishly, waspishly, crabbily 
2. In an irritable manner
   "she had become irritably exact"

See also: irritable

• lachrymal gland
• lachrymal secretion
• lachrymation
• lachrymator
• lachrymatory
• lachrymose
• lacing
• laciniate
• lack
• lackadaisical
• lackadaisically
• lackaday
• lackey
• lacking
• lackluster
• lacklustre
• Laconia
• Laconian
• laconic
• laconically
• laconicism
• laconism
• lacquer
• lacquer tree
• lacquerware