Enthusiasm vs I sometimes miss that giddy optimism

When to use each in English, with meaning, register, and examples.

Enthusiasm

Top 2,000 (common) B2 noun

I sometimes miss that giddy optimism

Top 3,000 (common)

Most common: Enthusiasm

	Enthusiasm	I sometimes miss that giddy optimism
Pronunciation	🇬🇧 /["/ɪnˈθjuːziæzəm/"]/ 🇺🇸 /["/ɪnˈθuːziæzəm/"]/	🇬🇧 //ˈɡɪdi ˈɒptɪmɪzm// 🇺🇸 //ˈɡɪdi ˌɑːptɪˈmɪzəm//
Meaning	A strong feeling of excitement and interest.	Feeling excited and happy about the future.
Example	Her enthusiasm for the project was contagious, inspiring everyone on the team.	I sometimes miss that giddy optimism of my childhood.
Register	Neutral	Neutral
How common	Top 2,000 (common)	Top 3,000 (common)
CEFR level	B2	-
Part of speech	noun
Collocations	burning, enormous, extraordinary, burst, surge, be full of, feel, have, bubble over, bubble up, grow, with enthusiasm, without enthusiasm, enthusiasm about, somebody can’t contain their enthusiasm, energy and enthusiasm, a lack of enthusiasm	giddy feeling, giddy joy, giddy excitement, giddy heights, giddy laughter
Antonyms	apathy, indifference, disinterest	-
Common mistakes	Confused with 'enthusiastic' (adjective form)., Using an incorrect preposition, like 'enthusiasm for' instead of 'enthusiasm about'., Spelling errors, such as omitting the 'a'.	Confused with 'giddy' as just silly, missing the nuance of optimism., Using 'optimism' in negative contexts., Ignoring the emotional depth when discussing feelings.
Usage notes	Use 'enthusiasm' to express excitement about something. It's appropriate in most situations but can feel overly emotional in very formal contexts.	Used in both casual and formal contexts to express a nostalgic or longing feeling. Works well in reflective or conversational settings, but may sound overly sentimental in very formal discourse.

See it in real clips

She shares my enthusiasm for justice. After all, she is a judge.

and you tell it so well, with such enthusiasm.

She shares my enthusiasm for justice. After all, she is a judge.

and you tell it so well, with such enthusiasm.

Enthusiasm

Avengers › Avengers Endgame

Gotta say it. I sometimes miss that giddy optimism.

I sometimes miss that giddy optimism

Frequently asked questions: Enthusiasm vs I sometimes miss that giddy optimism

What's the difference between Enthusiasm and I sometimes miss that giddy optimism?

Enthusiasm: A strong feeling of excitement and interest. I sometimes miss that giddy optimism: Feeling excited and happy about the future.

Which is more common: Enthusiasm and I sometimes miss that giddy optimism?

Enthusiasm is the most common in everyday English.

Can you show an example of each?

Enthusiasm: Her enthusiasm for the project was contagious, inspiring everyone on the team. I sometimes miss that giddy optimism: I sometimes miss that giddy optimism of my childhood.

Can I use Enthusiasm and I sometimes miss that giddy optimism interchangeably?

Not always. Enthusiasm and I sometimes miss that giddy optimism are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.