according to the exact details of a rule or law
Technically, the two countries are still at war, as a peace treaty was never signed.
What you have done is technically illegal.
2 [+ adjective/adverb]
concerning the special skills that are needed to play music, do a sport etc:
a technically brilliant pianist
The dance looks simple, but is technically very difficult.
concerning the way machines are used to do work:
Agriculture is becoming more and more technically advanced.
possible, difficult etc using the scientific knowledge that is available now:
It could soon be technically possible to produce a human being by cloning.