Use 'avidity' to express strong, positive desires for hobbies or interests, not negative obsessions. She pursued her studies with an avidity that inspired her classmates.
Pro Tip 2/3
Intensity Matters
'Avidity' suggests a higher level of intensity than just liking or enjoying something. His avidity for mountain climbing was unmatched.
Pro Tip 3/3
Not Always Positive
'Avidity' can be negative if it refers to harmful obsessions or excessive eagerness. Her avidity for fame led her to make unwise decisions.