use '?' for JOKER (blank)

From letters F, L, O, R, I, C, U, L, T, U, R, I, S, T, S  I made following words

15 letter words

floriculturists[20]

14 letter words

floriculturist[19]

11 letter words

futuristics[16], illustrious[11]

10 letter words

futuristic[15], scurrilous[12], culturists[12]

9 letter words

floristic[14], fistulous[12], futurists[12], coistrils[11], touristic[11], culturist[11]

8 letter words

sulfitic[13], sulfuric[13], florists[11], fusillis[11], floruits[11], tristful[11], flutists[11], futurist[11], trustful[11], clitoris[10], coistril[10], sciolist[10], solicits[10], oculists[10], truistic[10], critturs[10], cultists[10], luscious[10], utriculi[10], ructious[10], tourists[8], trustors[8], lustrous[8], surtouts[8]

7 letter words

frolics[12], ossific[12], fluoric[12], fustics[12], fuscous[12], florist[10], fusilli[10], toilful[10], floruit[10], flutist[10], outfits[10], soulful[10], furious[10], sulfurs[10], lustful[10], scrolls[9], colitis[9], solicit[9], soritic[9], lictors[9], litotic[9], tricots[9], scurril[9], cirrous[9], cursors[9], oculist[9], citrous[9], locusts[9], rustics[9], crittur[9], cultist[9], loculus[9], curious[9], cutouts[9], strolls[7], troilus[7], suitors[7], tsouris[7], tourist[7], trustor[7], lutists[7], outsits[7], surtout[7]

6 letter words

frolic[11], fistic[11], clifts[11], crofts[11], scurfs[11], fustic[11], fucous[11], fillos[9], follis[9], frills[9], fossil[9], forrit[9], flirts[9], fortis[9], foists[9], firsts[9], frosts[9], fritts[9], flours[9], fluors[9], furors[9], fusils[9], tufoli[9], flouts[9], fruits[9], outfit[9], sulfur[9], rufous[9], scroll[8], crisis[8], lictor[8], torics[8], stoics[8], otitic[8], tricot[8], strict[8], loculi[8], cullis[8], coulis[8], curios[8], clours[8], cirrus[8], cruors[8], cursor[8], sculls[8], scours[8], toluic[8], coitus[8], clouts[8], locust[8], citrus[8], rictus[8], rustic[8], courts[8], cistus[8], custos[8], scouts[8], crusts[8], oculus[8], sulcus[8], cultus[8], cutout[8], trills[6], triols[6], stroll[6], trolls[6], stills[6], tsoris[6], otitis[6], stilts[6], trulls[6], suitor[6], stulls[6], tsuris[6], rousts[6], stours[6], tussor[6], lutist[6], outsit[6], trouts[6], tutors[6], stouts[6], struts[6], sturts[6], trusts[6], tussur[6]

5 letter words

folic[10], flics[10], coifs[10], flocs[10], fiscs[10], clift[10], croft[10], fillo[8], frill[8], fills[8], filos[8], foils[8], flirs[8], rolfs[8], floss[8], flirt[8], cirri[7], coils[7], coirs[7], cross[7], licit[7], lotic[7], toric[7], lilos[5], rills[5], loris[5], roils[5], rolls[5], orris[5], sills[5], silos[5], soils[5], trill[5], torii[5]