researchfuladj.
/rᵻˈsəːtʃf(ᵿ)l/, /ˈriːsəːtʃf(ᵿ)l/, U.S. /ˈriˌsərtʃf(ə)l/, /rəˈsərtʃf(ə)l/, /riˈsərtʃf(ə)l/ Dedicated to or characterized by research.
ΘΚΠ
the mind > attention and judgement > discovery > research > [adjective]
researchfula1834
a1834 S. T. Coleridge Lit. Remains (1836) II. 129 Pity that the researchful notary has not..told us in what century..he was a writer.
1866 Reader No. 171. 342/1 The researchful sketches of Professor Wilson.
1875 M. A. Lower Eng. Surnames (ed. 4) I. p. xxvi A more erudite and researchful book.
1904 Musical Times 45 657/2 If only other members of British military bands were as industrious, researchful, and painstaking as this Bombardier, we should have the nucleus of a complete history of military music in this country.
1952 F. Dell Let. 29 Apr. in Amer. Lit. 45 445 Well, after people are dead, if there is still any interest in their lives the scholarly and researchful biographers have a right to handle these materials from their own point of view.
2000 N. Singh Ambedkar on Relig. xv. 487 Ambedkar's researchful mind was fully convinced by the logical, empirical, humanistic and pragmatic teachings of the Buddha.
This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022).
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adj.a1834