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Webster 1913 Edition

Adj.

Causing uneasiness.

[R.]

So distasteful and

disquietous

to a number of men.

Milton.

Adj.

Causing uneasiness. [Not used.]

disquietous ‎(comparative more disquietous, superlative most disquietous)

(obsolete) Causing uneasiness.
- John Milton
  so distasteful and disquietous to a number of men