precious

adjectives

characterized by feeling or showing fond affection for
"a cherished friend"; "children are precious"; "a treasured heirloom"; "so good to feel wanted"
is derived from
of high worth or cost
"diamonds, sapphires, rubies, and emeralds are precious stones"
is derived from
is similar to
having great material or monetary value especially for use or exchange
"a valuable diamond"
held in great esteem for admirable qualities especially of an intrinsic nature
"a valued friend"; "precious memories"
obviously contrived to charm
"an insufferably precious performance"; "a child with intolerably cute mannerisms"
is derived from
is derived from

adverbs

extremely
"there is precious little time left"