Felicitous

Felicitous fe·​lic·​i·​tous /fəˈlisədəs/ Adjective

suitable, well fitting

“I always have a pad of paper and a pencil within reach, to catch on the wing this turn of phrase which strikes me as felicitous, that idea which I hope to be able to examine more closely in the light of day.”

– Roger Martin Du Gard (1881 – 1958)