English dictionary definition of:



  • working or spreading in a hidden and usually injurious way
  • difficult to detect or grasp by the mind or analyze
  • able to make fine distinctions


elusive insidious pernicious

Spellzone course content

View spelling list Silent b words and learn about the word subtle in the Spellzone English spelling course, Unit 22. Words with silent letters e.g. wrap, comb, sign, knight.

Scrabble score for subtle

Scrabble score = 8

generated at 23:31:38 on 22-10-19

Spelling dictionary home

Sign up to remove this advert

Sign up to remove this advert

"This is a fantastic opportunity for our students!  I'm sure Spellzone will be invaluable in helping them to improve their spellings and therefore improve the quality of their writing in all subject areas!"

Teacher, High School, UK