missing-link (noun) missing link: lost connection
Sinonime: blessed,
blithe, cheerful, delighted, ecstatic,
exuberant, festive, glad, gleeful, heartwarming,
jocular,
jolly,
joyful, jubilant, merry,
mirthful, pleased,
spirited, upbeat,
vigorous,
wonderfulAntonime: unhappy