dent
Wikipedia
A four letter word starting with the letter a is able.
A four letter word for 'in addition to' is also.
A four letter word for Seizures is moon
dent
Wikipedia
There was one word that would fit the meaning of indentation and desperation. This word would be 'rash' and also fits the four letter length.
A depression or indentation in the ground could be referred to as a "hole."
i think it is dent
dent
notch
A 5 letter word for seashore is beach.
That is the correct spelling of the word depression (an indentation, or a gloomy psychological state).
Another word for depression or indentation is "concavity." Concavity refers to a surface that curves inward or has a depressed area. It is commonly used in mathematics and geometry to describe the shape of a curve or surface that is curved inward rather than outward.
The base word of "indentation" is "indent".
The word 'depressed' is the past participle, past tense of the verb to depress. The past participle of the verb also functions as an adjective.The abstract noun forms of the verb to depress are depression and the gerund, depressing.The noun depression is an abstract noun as a word for a state of sadness and low spirits.The noun depression is a concrete noun as a word for an indentation in something physical.