Webster’s Revised Unabridged Dictionary · 1913
Felicitous
Fe·lic′i·tous, a. Characterized by felicity; happy; prosperous; delightful; skillful; successful; happily applied or expressed; appropriate.
Felicitous words and images. M. Arnold.
— Fe·lic′i·tous·ly, adv. — Fe·lic′i·tous·ness, n.