invariable Synonyms

constant non-fluctuating unyielding unchanging unalterable unchangeable undeviating unaltered robotlike uniform unfailing undifferentiated treadmill substantial strong stout stiff steady unwavering long-standing carved in stone constant quantity well-balanced unfluctuating undiversified unvaried unadjustable reproducible parametric unvarying unchanged nonreversible nonreturnable unmodified unmodifiable stabile set in stone steadfast stationary invariant intransmutable inflexible incommutable inalterable immutable homogeneous hard fixed firm FAST