Pensive

adjective/ˈpɛn(t).sɪv/character

Definition

Engaged in, involving, or reflecting deep or serious thought.

Etymology

From Middle English pensif, pensyfe, pencyve, from Old French pensif (“thoughtful”), from penser (“to think”) (from Latin pēnsō) + -if (English -ive).

Synonyms

contemplative, meditative, reflective, thoughtful, wistful

In a sentence

He grew pensive when asked about the company's future.