1. in a manner that weakens, drains, or reduces physical or mental strength or vigor
Usage: formed from the adjective 'enervating' (present participle of 'enervate')

Examples

• The summer heat was enervatingly intense, leaving everyone too tired to work.
• She found the long meeting enervatingly dull and repetitive.
• The constant noise from construction was enervatingly disruptive to his concentration.
• After an enervatingly difficult day, he collapsed on the couch.
• The humid climate proved enervatingly uncomfortable for the visiting athletes.
• The enervatingly slow pace of the project frustrated the entire team.