debilitating

adjective
UK /dɪˈbɪlɪteɪtɪŋ/
US /dɪˈbɪləteɪtɪŋ/

Making someone very weak so they can't do normal things.

The flu left him so debilitating that he couldn't get out of bed for a week.


OTHER MEANINGS

2. Causing serious harm to the strength or effectiveness of something.

The debilitating effects of the drought ruined the crops.

3. Making a person unable to work or live normally because of illness or injury.

She suffers from a debilitating back condition.

4. Reducing the power or force of something, such as an argument or organization.

The scandal had a debilitating impact on the company's reputation.