lack

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lack the courage of (one's) convictions

To not have the confidence to act or behave in accordance with one's beliefs or ideologies, especially in the face of resistance, criticism, or persecution. The governor was presented with a bribe to help the corporation avoid regulation, and she accepted it because she lacked the courage of her convictions.
See also: conviction, courage, lack, of

not for (a) lack of trying

Despite putting forth a significant amount of effort or energy. A: "So, did he get you to go on a date with him?" B: "No. Not for lack of trying, mind you." I'm sorry your team lost, but it wasn't for a lack of trying!
See also: lack, not, of, trying

lack for (something)

To lack something one or something wants or requires, or would benefit from. You don't need to get me anything for my birthday, Mom—I really lack for nothing. The only thing he lacks for is the motivation to put his skills to goof use.
See also: lack

lack for something

to lack something. We don't lack for new ideas. We lack for nothing, thank you.
See also: lack

have/lack the courage of your conˈvictions

be/not be brave enough to do what you believe to be right: You say that cruelty to animals is wrong, so why not have the courage of your convictions and join our campaign?
See also: conviction, courage, have, lack, of

not for lack/want of ˈtrying

used to say that although somebody has not succeeded in something, they have tried very hard: He’s had no success in finding a job, though not for lack of trying.
See also: lack, not, of, trying, want

lack for

v.
To be in need of something or someone. Used chiefly in the negative: She is very popular and does not lack for friends. Because he's rich, he doesn't lack for luxuries.
See also: lack
References in periodicals archive ?
Thus, lacking control over something negative increased the need for structure whereas lacking control over something positive reduced the need for structure.
Even in our lacking (and our excess), or perhaps because of our lacking, God is with us.
Apologetic, defensive, and critically parochial, Renaissance Portraits is, finally, lacking in that sense of humanity one might think essential for a proper study of the topic.
If the general partner has a significant partnership interest, centralized management may be lacking.
The mice lacking gastrin also had fewer stomach-lining cells die off, which is a normal, tumor-suppressing action.
Spinal-fluid samples showed that rodents with functional TLR4 produced more inflammatory proteins in their central nervous systems than did rodents lacking working TLR4.
They found that female mice lacking MCH were less receptive to mating, and that male mice lacking MCH were less successful in their mounting behavior.
Many have industrial processes that require large amounts of hazardous materials imported from the United States, which poses a serious health risk to workers, particularly because industrial safeguards are often lacking in the poorly managed maquiladoras.
Mice lacking this protein can indulge in fatty food but remain as slim as mice on a lower-fat diet, a new study reports.
Investigators at the Salk Institute for Biological Studies in La Jolla previously studied mutant mice lacking the cell-surface proteins that vitamin A and its derivatives stimulate.
Two new studies of mice lacking enzymes that make nitric oxide (NO) should help scientists better understand the role of the compound in regulating rodent aggression and perhaps clarify its influence on human behaviors.