be thrown in at the deep end Definition

deep
adj

1. Far down from the top or surface; with a relatively great distance from the top or surface to the bottom.

Thesaurus: low, submerged, subterranean, abysmal, fathomless, submarine, immersed; Antonym: shallow, surface.
2. Going or being far in from the outside surface or edge.
3. Going or being far down by a specified amount.

Example: knee-deep in mud
4. In a specified number of rows or layers.

Example: lined up four deep
5. Coming from or going far down; long and full.

Example: a deep sigh
Example: a deep breath
6. Very great; serious.

Example: deep trouble
7. Said of a colour: strong and relatively dark; not light or pale.
8. Low in pitch.

Example: deep-toned
9. Said of emotions, etc: strongly felt.
10. Obscure; hard to understand.

Example: deep thoughts
11. Said of a person: mysterious; keeping secret thoughts.

Thesaurus: profound, acute, penetrating, incisive, wise, sagacious, canny, astute, shrewd, esoteric, recondite, intense.
12. cricket.
Not close to the wickets.
13. football.
Well behind one's team's front line of players.

adverb

1. Deeply.
2. Far down or into.
3. Late on in or well into (a period of time).

noun

1. The ocean.

Form: the deep
2. old use
A place far below the surface of the ground or the sea. See also depth.
Form: deeps (also)

Derivative: deeply
adverb

Very greatly.

Derivative: deepness
noun

Idiom: deep down

In reality, although not in appearance.

Idiom: deep in something

Fully occupied or involved with it.
Example: deep in thought

Idiom: go in at the deep end (jump in at the deep end, dive in at the deep end, be thrown in at the deep end)

colloq
To begin or be given a difficult undertaking with little or no experience or preparation.

Idiom: go off at the deep end (go off the deep end)

colloq
To lose one's temper suddenly and violently.
Thesaurus: go to extremes, go too far, lose one's good sense; rant, exaggerate, rage.

Idiom: in deep water

colloq
In trouble or difficulties.

Etymology: Anglo-Saxon deop.