non-unique

1 4.5

Something that is not the only one and can appear more than once

adjective
/nɒn-juːˈniːk/

: no único

The website allows users to submit non-unique usernames, so some may have identical names.

Next Tuesday I think with binary heaps we'll deal with non unique keys.

Examples

In a crowded marketplace, many vendors sell non-unique souvenirs that everyone can find.
When analyzing the data, I found several entries with non-unique characteristics.
And these are points with non unique shortest paths to X.
Next Tuesday I think with binary heaps we'll deal with non unique keys.

MIT OpenCourseWare

Synonyms

unoriginal

vsnon-unique

7 3.4

Not new or creative like ideas you have heard before

is about existing more than once rather than lacking newness

indistinctive

vsnon-unique

1 7.2

Not having clear features that make it different

is about existing more than once rather than being hard to notice

duplicable

vsnon-unique

1 6.1

Something that can be copied, like data or a method

is about existing more than once rather than being made again

duplicatable

vsnon-unique

1 4.8

Can be copied exactly

is about existing more than once rather than exact reproduction

nonspecial

vsnon-unique

1 4.6

Not having special or unique qualities

is about appearing more than once rather than lacking noteworthy qualities

nondistinctive

vsnon-unique

1 6.1

Not having features that make it stand out

is about existing more than once rather than being hard to tell apart

undistinctive

vsnon-unique

1 5.6

Lacking special features that make it stand out

is about appearing more than once rather than lacking notable features

nonoriginal

vsnon-unique

1 5.0

Not new and made as a copy of another thing

is about not being the only example rather than being a copy

Antonyms

unique

∞ 3.5

The only one of its kind

How Unique

one of a kind

76 3.6

unique

∞ 3.5

distinct

127 3.5

non-unique

1 4.5

common

∞ 1.0

Surface Forms

non-unique positive

Morphology

non-unique = unique (transparent) = non + unique

The negative prefix 'non-' attached to the adjective 'unique' yields the straightforward opposite meaning 'not unique'.

Etymology

Non-unique is built from non- meaning 'not' and unique, which contains uni- meaning 'one', as in unicorn or uniform. So non-unique means 'not one', not the only one and able to appear more than once.