functionally
adverb /ˈfʌŋkʃənəli/
  /ˈfʌŋkʃənəli/
- connected with the purpose of something
- Elastic fibres are functionally important components of skin.
 - This process is functionally equivalent to swarming in honeybees.
 - adults who are functionally illiterate (= not able to read and write well enough to cope with everyday situations)
 
Oxford Collocations DictionaryFunctionally is used with these adjectives:- identical
 - illiterate
 - important
 - …
 
 - in a practical and useful way; with little or no decoration
- The workroom is a functionally designed space that is simple and comfortable.