- Pertaining to theory; depending on, or confined to,
theory or speculation; speculative; terminating in theory or
speculation: not practical; as, theoretical learning; theoretic
sciences.
Meaning of 'theoretical' (Princeton's WordNet)
1 . theoretical
[ a]
Meaning (1): - concerned with theories rather than their practical applications
Example in sentence:
theoretical physics
Meaning (2): - concerned primarily with theories or hypotheses rather than practical considerations