A good word for a list with too many items

Question

I'm struggling with a word for a list which is very well built, sorted, and organized, but it's a heck of a headache to deal with because there are so many items.

The list doesn't display old items, to prevent it from becoming______________.

I've toyed with the following words, but they don't seem to fit:

• crowded (can a list be crowded?)
• cluttered (has implication of messy, but the list is very well organized)
• overwhelming (this is more of a person's reaction than a list characteristic)
• jam packed (not proper enough)
• congested (not blocking anything)

Answer 1

A simple way to express this would be to say the list is becoming too long.

From Oxford Dictionaries Online:

3 Relatively great in extent:

‘write a long report’

‘a long list of candidates’

Answer 2

You apparently don't want the list to seem endless or interminable.

The list doesn't display old items, to prevent it from becoming endless/interminable.

ODO:

endless ADJECTIVE

1 Having or seeming to have no end or limit:
‘the list is endless’

interminable ADJECTIVE

Endless or apparently endless (often used hyperbolically)

‘After a while these interminable lists acquire a certain ghoulish fascination, prompting a host of other questions.’

Collins:

endless adjective
1. having or seeming to have no end; eternal or infinite
2. continuing too long or continually recurring

interminable adjective
endless or seemingly endless because of monotony or tiresome length

Collins English Dictionary. Copyright © Harper Collins Publishers

Answer 3

unwieldy

merriam-webster's definition of unwieldy

unwieldy: not easily managed, handled, or used (as because of bulk, weight, complexity, or awkwardness) : cumbersome

in your setentence: The list doesn't display old items, to prevent it from becoming unwieldy.

Answer 4

You could consider using "overloaded" which means:

having or supplied with too much of something: The market is already overloaded with car magazines - why would anyone want to produce another one?

Actual usage:

It was meant to comprise the name of those about whom suspicion was credible. However, unfortunately, owing to a certain 'indiscriminate use of the autority exercised by branch officers', the list became overloaded with names of persons who should not have been on it...

[Source: MI5 at War 1909-1918]

Answer 5

At the end of the sentence, you can probable use the phrase "a hotchpotch"

As per Cambridge dictionary, a hotchpotch is "a confused mixture of different things"

The words "ragbag" or "panoply" are other appropriate options

As per Cambridge dictionary, a panoply is "a wide range or collection of different things". A ragbag is "a confused mixture of different types of things"