Good synonyms might be "gullible" or "guileless". In English a French word has been borrowed also: "naive".
A very very confused person.
you call them wealthy.
a banchee or a VERY VERY VERY annoying person with terets or ADD
A geriatric You call them elderly or an elder.
A genius.
Happy or a very lighthearted person.
a very intelligent person.
Parsimonius A miser "schrooge"
A person that is very old is commonly referred to as elderly or a senior citizen.
A very fortunate person!!!!
clever Not everyone who is wise is clever. A name for a very wise person is a "sage".
Enraged, distraught, 'very angry' ;)