v.
Pronunciation: ' st ə l-t ə - ˌ f ī
Function: transitive verb
Inflected Form: -fied ; -fy · ing
Etymology: Late Latin stultificare to make foolish, from Latin stultus foolish; akin to Latin stolidus stolid
Date: 1737
1 archaic : to allege or prove to be of unsound mind and hence not responsible
2 : to cause to appear or be stupid, foolish, or absurdly illogical
3 a : to impair, invalidate, or make ineffective : NEGATE b : to have a dulling or inhibiting effect on
– stul · ti · fi · ca · tion \ ˌ st ə l-t ə -f ə - ' k ā -sh ə n \ noun