1. to be without or not have enough of something needed or wanted
Usage: third person singular present tense of ‘lack’

Examples

• She lacks experience in customer service.
• The proposal lacks detail and clarity.
• He lacks the confidence to speak in public.
• The team lacks a strong leader.
• This soup lacks flavor and needs more seasoning.
• The student lacks motivation to complete assignments.
• The building lacks proper ventilation systems.