Difference between Dastardly and Fearful

What is the difference between Dastardly and Fearful?

Dastardly as an adjective is in the manner of a dastard; marked by cowardice; pusillanimous while Fearful as an adjective is frightening

Part of speech: adjective

Definition: in the manner of a dastard; marked by cowardice; pusillanimous treacherous; given to backstabbing

Part of speech: adjective

Definition: frighteningfrightened, filled with terrorterrible

Example sentence: With the fearful strain that is on me night and day, if I did not laugh I should die.

We hope you now know whether to use Dastardly or Fearful in your sentence.