irreconcilable (adj.)
- abnormal
- absurd
- adamant
- adamantine
- alienated
- anomalous
- assorted
- cast-iron
- contrary
- contrasting
- deviating
- different
- differentiated
- disaffected
- discordant
- discrepant
- discrete
- disjoined
- disparate
- disproportionate
- dissentient
- dissident
- dissimilar
- dissonant
- distinct
- distinguished
- disunited
- divergent
- diverging
- divers
- diverse
- diversified
- divided
- dour
- estranged
- firm
- flinty
- grim
- hard
- hard-core
- heterogeneous
- immovable
- immutable
- implacable
- incoherent
- incommensurable
- incommensurate
- incompatible
- incongruent
- incongruous
- inconsequent
- inconsistent
- inelastic
- inexorable
- inflexible
- inharmonious
- intransigent
- iron
- many
- motley
- multifarious
- obstructive
- paradoxical
- punitive
- punitory
- rancorous
- relentless
- retaliatory
- revengeful
- rigid
- rigorous
- rock-ribbed
- self-contradictory
- separate
- separated
- several
- steely
- stern
- stiff
- torn
- unaffected
- unalterable
- unappeasable
- unbending
- unchangeable
- uncompromising
- unconformable
- unequal
- unlike
- unmoved
- unrelenting
- unyielding
- variant
- varied
- variegated
- various
- varying
- vengeful
- vindicatory
- vindictive