func·tion·al·ly 
(fŭngkshə-nə-lē)
(fŭngkshə-nə-lē)adv.
1. In a functional way: The old car was still functionally operable.
2. Practically; effectively: two computer programs that were functionally identical.
- institutionalize
- institutionally
- institutor
- in stock
- in store
- instr.
- instroke
- instruct
- instruction
- instructional
- instructive
- instructively
- instructiveness
- instructor
- instructorship
- instrument
- instrumental
- instrumentalism
- instrumentalist
- instrumentality
- instrumentally
- instrumentation
- instrument flying
- instrument landing
- instrument panel