perturbed

About 1.14 uses per million words.

Meaning

1. verb simple past and past participle of perturb
2. adjective Disturbed; flustered.
3. adjective Slightly modified.

   The equation x − 3.0001x + 2 = 0 is a perturbed version of x − 3x + 2 = 0.

Similar words

discomposed flustered hot and bothered rattled unsettled distressed disturbing troubled upsetting worried

Often followed by

by and at about the in to state that