Sinonim indefinable

English Thesaurus

1. not capable of being precisely or readily described; not easily put into words (adj.all)

similar	:	undefined, vague,
definition	:	not precisely limited, determined, or distinguished (adj.all)

2. defying expression or description (adj.all)

similar	:	inexpressible, unexpressible,
definition	:	defying expression (adj.all)