perturbed[adjective]Synonyms: disturbed, agitated, anxious, disconcerted, flustered, shaken, troubled, uncomfortable, uneasy, worried 
 [TahlilGaran] English Synonym Dictionary ▲
 per‧turbed /pəˈtɜːbd $ pərˈtɜːrbd/ 
 adjective formal[
Date: 1300-1400; 
Language: Old French; 
Origin: perturber, from Latin perturbare]
 worried about something that has happened or will happen: 
 William looked a little perturbed.perturbed by/at/about
 William looked a little perturbed.perturbed by/at/about He didn’t seem perturbed by the noises outside.perturbed that
 He didn’t seem perturbed by the noises outside.perturbed that He was perturbed that she didn’t look happy.—perturb verb [transitive]
 He was perturbed that she didn’t look happy.—perturb verb [transitive]: 
 My unexpected arrival didn’t perturb him in the least.
 My unexpected arrival didn’t perturb him in the least.  [TahlilGaran] Dictionary of Contemporary English ▲