American English

Definition of perturb verb from the Oxford Advanced American Dictionary



    perturb somebody (formal)Verb Forms present simple I / you / we / they perturb
    he / she / it perturbs
    past simple perturbed
    -ing form perturbing
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  1. 1to make someone worried or anxious synonym alarm
  2. 2 Her sudden appearance did not seem to perturb him in the least. I was perturbed by his lack of interest.
adjective a perturbed young man perturbed at/about something She didn't seem perturbed at the change of plan. opposite unperturbed
See the Oxford Advanced Learner's Dictionary entry: perturb