theoretical

adjectives

concerned primarily with theories or hypotheses rather than practical considerations
"theoretical science"
antonym
concerned with theories rather than their practical applications
"theoretical physics"
antonym
is similar to
dealing with a subject in the abstract without practical purpose or intention
"abstract reasoning"; "abstract science"
is similar to
hypothetical or theoretical and not expected to produce an immediate or practical result
"an academic discussion"; "an academic question"
is similar to
concerned with theory and data rather than practice; opposed to applied
"pure science"