“optimistic”

Confidently cheerful and optimistic, especially in difficult circumstances.

“Despite the failed harvest, she remained sanguine about the village's chances of surviving the winter.”

Best for: Works well in formal writing or speech; carries a slightly old-fashioned elegance.

Cheerfully resilient and inclined to look on the bright side.

“His buoyant mood was infectious, lifting the spirits of everyone in the room.”

Best for: Slightly informal but vivid; great for describing emotional tone in narrative or journalism.

Aggressively confident and positive about future prospects.

“She was bullish about the company's growth, refusing to entertain talk of recession.”

Best for: Common in financial and business contexts; implies assertive confidence rather than passive hope.

Viewing the world through a warm, rosy lens of hopeful expectation.

“His roseate vision of the future blinded him to the cracks already forming in the foundation.”

Best for: Best in literary or poetic writing; often implies a hint of naïve or excessive hopefulness.

Cheerfully optimistic and in good spirits, originally referring to good digestion as a source of wellbeing.

“The eupeptic philosopher greeted every misfortune as a hidden gift.”

Best for: Extremely rare and delightfully odd; ideal for writers who want to surprise or amuse a well-read audience.

One who believes the world can and does improve through human effort, embodying active, principled optimism.

“A quiet meliorist, she spent forty years building schools in places the world had forgotten.”

Best for: Philosophical and precise; suits essays, character descriptions, or intellectual discourse.