steadfast (adj.)
- abiding
- accordant
- adamant
- aged
- alike
- ancient
- antique
- ardent
- assiduous
- automatic
- balanced
- calculable
- changeless
- chronic
- committed
- consistent
- consonant
- constant
- continuing
- continuous
- cool
- correspondent
- dedicated
- deep-rooted
- dependable
- determined
- devoted
- diligent
- dogged
- durable
- enduring
- equable
- equal
- even
- evergreen
- faithful
- fast
- fiducial
- firm
- fixed
- flat
- flinty
- frozen
- hardy
- homogeneous
- immobile
- immotile
- immovable
- immutable
- imperturbable
- inalterable
- indefatigable
- indomitable
- industrious
- inexorable
- inflexible
- insistent
- intact
- invariable
- inveterate
- invincible
- inviolate
- irremovable
- lasting
- level
- liege
- long-lasting
- long-lived
- long-standing
- long-term
- loyal
- macrobiotic
- measured
- mechanical
- monolithic
- obdurate
- obstinate
- ordered
- orderly
- patient
- perdurable
- perennial
- permanent
- perpetual
- persevering
- persistent
- persisting
- pertinacious
- plodding
- predictable
- preoccupied
- quiescent
- rapt
- regular
- relentless
- reliable
- remaining
- resolute
- resolved
- rigid
- robotlike
- secure
- sedulous
- set
- settled
- single-minded
- sleepless
- smooth
- solid
- sound
- stable
- static
- stationary
- staunch
- steady
- steely
- stubborn
- substantial
- sure
- sustained
- systematic
- tenacious
- tested
- tireless
- torpid
- tough
- tried
- true
- true-blue
- trustworthy
- trusty
- unaltered
- unbending
- unbroken
- unchangeable
- unchanged
- unchanging
- unchecked
- unconquerable
- undaunted
- undeviating
- undifferentiated
- undiscouraged
- undiversified
- unfading
- unfailing
- unfaltering
- unflagging
- unflappable
- unflinching
- uniform
- uninterrupted
- unmovable
- unqualified
- unquestioning
- unrelenting
- unremitting
- unruffled
- unshakable
- unshaken
- unsleeping
- unswerving
- untiring
- unvaried
- unvarying
- unwavering
- unwearied
- unwearying
- unyielding
- vital
- well-balanced
- well-founded
- well-grounded
- wholehearted
On a fair prospect some have looked,
And felt, as I have heard them say,
As if the moving time had been
A thing as steadfast as the scene
On which they gazed themselves away.
