Frightful and Implacable

Frightful adjective - Causing fear.

Implacable and frightful are semantically related. In some cases you can use "Implacable" instead an adjective "Frightful".

Nearby Words: frightening, frightened, fright, frightfully, frighted

Implacable adjective - Sticking to an opinion, purpose, or course of action in spite of reason, arguments, or persuasion.

Frightful and implacable are semantically related. Sometimes you can use "Frightful" instead an adjective "Implacable".

Nearby Words: implacability, implacably