Slim, skinny, slender.
Thick and slender are antonyms, words with opposite meanings.
The antonym (opposite) of thick is slender or slim or thin. For thick as in stupid (The mouse is not clever. It is thick.), the antonym is smart or clever/intelligent.
The slender giraffe is most elegant.
A slender gazelle nibbled grass. -OR- Most pianists have very slender fingers.
Yes. It can mean narrow or slender, generally the opposite of thick.
Thin.
slender
The root word "lepto" comes from Greek and means thin or slender. It is commonly used in scientific terms related to things that are thin or slender, such as the bacteria genus Leptospira.
Reedy
slender
The word slender is an adjective. It describes something that is thin.