adj.
Pronunciation: stu ̇ - ' pen-d ə s, styu ̇ -
Function: adjective
Etymology: Latin stupendus, gerundive of stup ē re
Date: 1640
1 : causing astonishment or wonder : AWESOME , MARVELOUS
2 : of amazing size or greatness : TREMENDOUS
synonyms see MONSTROUS
– stu · pen · dous · ly adverb
– stu · pen · dous · ness noun