неуловим

• elusive, hard/impossible to catch
• той е НЕУЛОВИМ he is not to be caught, you can't get hold of him
• НЕУЛОВИМa пеперуда an elusive butterfly
• НЕУЛОВИМ за окото not visible to the naked eye
• (незабележим, недоловим, едва доловим) imperceptible, intangible, inappreciable, subtle
• НЕУЛОВИМa разлика a subtle/an undefinable difference