Can one be "convicted" if one has a strong opinion?
Can "convicted" be used to qualify somebody who has a conviction (in the sense of strong opinion)? In that context it would be a close synonym of convinced or opinionated for example.
It possibly makes etymological sense but I don't know if it is (or has ever been) an accepted usage of that word in English.
Solution 1:
Convicted has been used in the sense of convinced.
†3. To prove, establish by proof, as against assertions to the contrary. (= convince v. 5) (Orig. of things blamable.) Obs.
c1475 (▸?c1400) Apol. Lollard Doctr. (1842) 3 If he be conuicted not to luf, ne to do þe office of Crist.
1558 Q. Kennedy Compendius Tractiue in D. Laing Misc. Wodrow Soc. (1844) I. 119 Thir twa argumentis..convictis the generale Counsalis to be the membir of the Congregatioun representand the universale Kirk.
1563 2nd Tome Homelyes Rebellion ii, in J. Griffiths Two Bks. Homilies (1859) ii. 565 Convicting such subjects..to be neither good subjects nor good men.
1593 R. Hooker Of Lawes Eccl. Politie iii. xi. 168 Imagining that these proofs will conuict a testament to haue that in it which other men can no where by reading find.
1656 J. Smith Compl. Pract. Physick 137 Cold water may be allowed to those are used to it, on the state and the matter being convicted.[OED]
I had thought that it appeared in Austen's writings too, but it is listed as now obsolete.