Several words can be similar... Cavern, trench, sinkhole, burrow, chasm, chamber, pit, shaft, void, fissure.
chasm
chasm
pit. trench. abyss. endless. immeasurable. so on and so forth
The Greek word that chasm came from is the word abyss. An abyss is a very deep, deep hole that is so deep it never seems to have a bottom.
The word deepen means to cause to become more deep. For example, if you have a hole that is five feet deep and you dig it out so that it becomes six feet deep, you have deepened the hole.
No. 'Grave' means a hole people are buried in, or secondly 'very serious' .
The word profound is an adjective. It means very deep or serious.
Pit
Well, cavern...
There is no exact translation but "peu profond" means "not very deep".
"Excavate" means to dig a tunnel or a hole.
Multifacitated is a word which means to have many sides to your character to be very deep. Where as ambivalence is a word which means feeling two opposite emotions about the same thing.