Following are all the underivatised like words, in the list below.
UNHYBRIDISED
100% like underivatised
UNFUNCTIONALISED
100% like underivatised
UNCATABOLISED
99.99% like underivatised
UNDERVIRILISED
99.99% like underivatised
UNHOMOGENISED
99.98% like underivatised
UNSYNTHESISED
99.98% like underivatised
UNSYMBOLISED
99.98% like underivatised
NONSYNTHESISED
99.97% like underivatised
UNFORMALISED
99.97% like underivatised
UNPOLYMERISED
99.96% like underivatised
UNSCLEROTISED
99.96% like underivatised
UNVITALIZED
99.96% like underivatised
UNPYROLYSED
99.95% like underivatised
UNSTIGMATISED
99.95% like underivatised
NONSTANDARDISED
99.94% like underivatised
UNINDIVIDUALISED
99.94% like underivatised
UNNATURALISED
99.94% like underivatised
SUBFUNCTIONALISED
99.93% like underivatised
UNSENSITISED
99.93% like underivatised
UNSOLUBILISED
99.92% like underivatised
UNLEXICALISED
99.92% like underivatised
UNINDUSTRIALISED
99.92% like underivatised
UNEMPHASISED
99.91% like underivatised
UNMATERIALISED
99.91% like underivatised
UNREGULARISED
99.9% like underivatised
UNSTANDARDISED
99.9% like underivatised
UNDRAMATISED
99.9% like underivatised
NONNORMALISED
99.89% like underivatised
DEOPTIMISED
99.89% like underivatised
UNDERCHARACTERISED
99.88% like underivatised
UNEQUIVALENT
99.88% like underivatised
UNROMANISED
99.88% like underivatised
UNLOCALISED
99.87% like underivatised
UNCRYSTALLISED
99.87% like underivatised
UNEQUIVALVED
99.86% like underivatised
UNALPHABETISED
99.86% like underivatised
UNGENERALISED
99.86% like underivatised
UNCRYSTALLISABLE
99.85% like underivatised
RESIDUALIZED
99.85% like underivatised
INORGANISED
99.84% like underivatised
NONSPECIALISED
99.84% like underivatised
NONIONISED
99.84% like underivatised
UNFAMILIARISED
99.83% like underivatised
UNSYNTHESISABLE
99.83% like underivatised
UNGELATINISED
99.82% like underivatised
UNCOMPARTMENTALISED
99.82% like underivatised
UNLEGALISED
99.82% like underivatised
NONPERSONALISED
99.81% like underivatised
NONLATERALISED
99.81% like underivatised
UNDECONSTRUCTIBLE
99.8% like underivatised
NONINDUSTRIALISED
99.8% like underivatised
UNMETASTASISED
99.8% like underivatised
UNANESTHETISED
99.79% like underivatised
UNSOCIALISED
99.79% like underivatised
UNUTILISED
99.78% like underivatised
NONVASCULARISED
99.78% like underivatised
UNCAPITALISED
99.78% like underivatised
NONRANDOMISED
99.77% like underivatised
UNCENTRED
99.77% like underivatised
NONPOLARISED
99.76% like underivatised
UNHYPOTHESISED
99.76% like underivatised
NONOXIDISED
99.76% like underivatised
UNPARAMETERISED
99.75% like underivatised
PRESYNTHESISED
99.75% like underivatised
MUTAGENISED
99.74% like underivatised
UNFAVOURED
99.74% like underivatised
NONHYDROLYSABLE
99.74% like underivatised
UNCENTRALISED
99.73% like underivatised
INEXTRACTABLE
99.73% like underivatised
PSEUDOGENISED
99.72% like underivatised
UNSUBSTANTIATABLE
99.72% like underivatised
UNCOGNISABLE
99.72% like underivatised
UNPARTICULARISED
99.71% like underivatised
UNCOLONISED
99.71% like underivatised
DEVITELLINISED
99.7% like underivatised
CHIRALISED
99.7% like underivatised
NON-STREAMLINED
99.7% like underivatised
NON-LEXICAL
99.69% like underivatised
NON-AUTHENTIC
99.69% like underivatised
NON-UNIFORM
99.68% like underivatised
NON-DENUMERABLE
99.68% like underivatised
UNDERPRESSURISED
99.68% like underivatised
PSEUDONORMALISED
99.67% like underivatised
ABSORPTED
99.67% like underivatised
INSUBSTANTIATED
99.66% like underivatised
BIOCATALYSED
99.66% like underivatised
NON-FRANCHISED
99.66% like underivatised
NON-UBIQUITOUS
99.65% like underivatised
NONMETALIZED
99.65% like underivatised
UNTRANSLATEABLE
99.64% like underivatised
UNITARISED
99.64% like underivatised
UNDEREMPHASISED
99.64% like underivatised
UNDREAMED
99.63% like underivatised
ANABOLISED
99.63% like underivatised
UNPROSELYTISED
99.62% like underivatised
DEPARASITISED
99.62% like underivatised
UNGENERALISABLE
99.62% like underivatised
UNEXTRACTIBLE
99.61% like underivatised
ANONYMISABLE
99.61% like underivatised
NON-TRADITIONAL
99.6% like underivatised