But the anti-dopers, led by the World Anti-Doping Agency (WADA), will also be more zealous.

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Startups can be overly zealous to work with bigger companies for the many potential upsides the relationship may bring.

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Automated systems can also be too zealous.

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New Year's Day has no very religious origin, and so can be celebrated by the most zealous secularist - but perhaps not with new year resolutions, which are a Puritan tradition of spiritual improvement.

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Zealous new government initiatives seem to be disclosed with every news cycle.

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"The government needs to be careful not to deter lawyers from being zealous advocates for their clients, " says John Wood, a former U.S. Attorney for the Western District of Missouri.

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The more zealous their assailants, the more it may be in their interest to persuade rather than simply beat them.

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Rick, I would not wish for any human life to be lost because of a lack of profit, or overly zealous regulation.

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Investors may be as fickle as the weather, but the IMF, too, is warning against over-zealous austerity.

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