Webster's English Dictionary

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theoretical

the.o.ret.i.cal also the.o.ret.ic \.the--*-'ret-i-k*l, .thi(-*)r-'et-\ 
   \-ik\ \-i-k(*-)le-\ aj [LL theoreticus, fr. Gk theo-re-tikos, fr. 
   theo-rein] 1a: relating to or having the character of theory : ABSTRACT  
   1b: confined to theory or speculation : SPECULATIVE {~ mec hanics} 2: given 
   to or skilled in theorizing  3: existing only in theory : HYPOTHETICAL  - 
   the.o.ret.i.cal.ly av