"extremely inadequate" is a correct and usable phrase in written English.
It can be used to describe something that is very lacking or insufficient. Example: The government's response to the natural disaster was extremely inadequate, leaving many people without basic necessities for weeks.
The road system remained extremely inadequate, as was demonstrated in the Crimean War.
Bob Blendon, an expert at Harvard on public opinion and health, agreed that "middle-income elderly will feel the bill is extremely inadequate".
In the building boom of the last decade some extremely inadequate housing has gone up in working-class districts of Rome.
In 1974,… In the building boom of the last decade some extremely inadequate housing has gone up in working-class districts of Rome.
The reason I'm so rarely heckled is that women are not generally hecklers -- it's generally men -- and I will make them feel extremely inadequate, and they don't want to be humiliated by a woman".
The New Yorker, April 8 , 1974P. 113 In the building boom of the last decade some extremely inadequate housing has gone up in working-class districts of Rome.
More than half (58%) of children living in such countries live in extremely poor households, according to the report, increasing their risk of inadequate education, healthcare and nutrition.
For the last category, Data Rejected (colored in grey), the required data were inadequate for analysis due to poor instrument practice, exhibited extremely poor S/N or contained indiscernible artefacts or impurities, etc.
A third political prisoner, Ariel Sigler Amaya, who has been in prison for 20 years, is in extremely poor health in a Havana hospital and, according to his family, is receiving inadequate treatment.
The high number of imprisoned persons, extremely overcrowded conditions, inadequate ventilation, and poor general health of inmates facilitate the spread of tuberculosis.
3. "They must have felt very vulnerable" An informant told us about a patient that she had known for a long time whom she thought of as extremely nervous and inadequate.
