“Lackluster” or “Lacklustre”

Language

Lackluster and lacklustre are both English terms.

Usage

Lackluster is predominantly used in 🇺🇸 American (US) English (en-US) while lacklustre is predominantly used in 🇬🇧 British English (used in UK/AU/NZ) (en-GB).

In terms of actual appearance and usage, here's a breakdown by country, with usage level out of 100 (if available):

Term	US	UK	India	Philippines	Canada	Australia	Liberia	Ireland	New Zealand	Jamaica	Trinidad & Tobago	Guyana
lackluster	98	47	63	96	79	44	0	56	53	100	100	0
lacklustre	2	53	37	4	21	56	0	44	47	0	0	0

• In the United States, there is a preference for "lackluster" over "lacklustre" (98 to 2).
• In the United Kingdom, there is a 53 to 47 preference for "lacklustre" over "lackluster".
• In India, there is a preference for "lackluster" over "lacklustre" (63 to 37).
• In the Philippines, there is a preference for "lackluster" over "lacklustre" (96 to 4).
• In Canada, there is a preference for "lackluster" over "lacklustre" (79 to 21).
• In Australia, there is a 56 to 44 preference for "lacklustre" over "lackluster".
• In Liberia, there is not enough data to determine a preference between "lackluster" and "lacklustre".
• In Ireland, there is a preference for "lackluster" over "lacklustre" (56 to 44).
• In New Zealand, there is a preference for "lackluster" over "lacklustre" (53 to 47).
• In Jamaica, there is a preference for "lackluster" over "lacklustre" (100 to 0).
• In Trinidad & Tobago, there is a preference for "lackluster" over "lacklustre" (100 to 0).
• In Guyana, there is not enough data to determine a preference between "lackluster" and "lacklustre".

Examples

Below, we provide some examples of when to use lackluster or lacklustre with sample sentences.

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