insufficiently
adverb /ˌɪnsəˈfɪʃntli/
/ˌɪnsəˈfɪʃntli/
(formal)- to a degree that is not great enough for a particular purpose; not as much as is necessary
- The army was insufficiently strong to make further advances.
Oxford Collocations DictionaryInsufficiently is used with these adjectives:- precise
- radical