philosophical (adj.)

• abstract
• accepting
• balanced
• calm
• cogitative
• commonsense
• composed
• contemplative
• cool
• coolheaded
• detached
• disciplined
• down-to-earth
• enduring
• equable
• equanimous
• erudite
• esoteric
• even-tempered
• forbearing
• imperturbable
• impractical
• indulgent
• judicious
• learned
• lenient
• level-headed
• levelheaded
• logical
• long-suffering
• longanimous
• meditative
• moderate
• patient
• peaceful
• persevering
• philosophic
• placid
• practical
• pragmatic
• pragmatical
• quiet
• rational
• realistic
• reasonable
• reflective
• sane
• scholarly
• sensible
• serene
• sober
• sophistical
• sound
• stoic
• stoical
• temperate
• theoretical
• thoughtful
• tolerant
• tranquil
• unconcerned
• understanding
• unemotional
• unimpassioned
• unperturbed
• unruffled
• well-balanced