to lack; to be short of

there is no lack of

lacking the power, influence, or ability to perform a task or achieve a result

tedious; dull

to be short of or lacking in necessary resources, supplies, or money

lacking in depth, variety, or necessary abstract qualities such as knowledge or vocabulary

feeling physically or mentally exhausted; lacking energy or strength

to eliminate physical exhaustion or tiredness; to freshen up

nothing to write home about; lacking in merit

(idiom) nothing can be done to remedy the situation; beyond recovery

riders tired and horses weary; completely worn out or fatigued, typically after a long journey or a period of strenuous effort

nuclear spent fuel

having ample supplies, resources, or money

to accept a position on a provisional basis in the absence of better qualified candidates (a humble expression)

(nuclear energy) spent fuel rods

to be unable to attend to other things or be in two places at once due to existing commitments or being too busy

lacking in variety or interest; repetitive and dull

lacking someone to look after or take care of a person, such as an elderly person or a child

to try to rouse oneself but lack the strength

Potiphar, the captain of the pharaoh's guard (in the account of Joseph in the Book of Genesis)

clinical deficiency

language deficit (linguistics)