verb make dull or blunt
Synonymsdull
verb make less lively, intense, or vigorous; impair in vigor, force, activity, or sensation
Synonymsdeaden
adjective having a broad or rounded end
Similarpointless
adjective used of a knife or other blade; not sharp
Similardull
adjective characterized by directness in manner or speech; without subtlety or evasion
Similardirect
adjective devoid of any qualifications or disguise or adornment
Similarunconditional
Source: WordNet 3.1, Princeton University
