felicísimo

Felicísimo is a Spanish adjective that forms the superlative of feliz. It conveys an extremely high degree of happiness and can function as a modifier for a noun or as a predicate in a sentence, meaning “the most happy” or “extremely happy.”

Etymology and orthography: Felicísimo is built from feliz, which comes from the Latin felix meaning fortunate or lucky. The suffix -ísimo is a standard intensifying or superlative ending in Spanish. Because the base ends in z, the letter changes to c before adding the suffix, giving felicísimo. The feminine form is felicísima, and the plural forms are felicísimos and felicísimas.

Grammatical notes: Felicísimo is masculine singular; felicísima is feminine singular, and the plural forms are felicísimos (masc.) and felicísimas (fem.). It is commonly used in literary or formal contexts, though it can appear in expressive speech to emphasize joy or luck. It tends to carry a stronger nuance than simply decir “muy feliz.”

Usage examples: Una noticia felicísima. Fue un día felicísimo para la familia. Estoy felicísimo de verte. In everyday speech, speakers often opt for “muy feliz” or “extremadamente feliz,” with felicísimo reserved for heightened emphasis or stylistic effect.

Related terms: Felicidad (happiness), feliz (happy). Felicísimo is part of a broader range of intensifying forms in Spanish that attach to adjectives to express degree, while keeping a formal or emphatic tone.