CATALYZERS Antonyms

• a football player whose responsibility is to block players attempting to stop an offensive play

• a class of drugs that inhibit (block) some biological process

• something immaterial that interferes with or delays action or progress

• tending to deter

• a substance that retards or stops an activity

• something immaterial that stands in the way and must be circumvented or surmounted

• an obstruction that stands in the way (and must be removed or surmounted or circumvented)

• an agent that represses

• a person of subnormal intelligence

• cause to move more slowly or operate at a slower rate

• be delayed

• slow the growth or development of

• lose velocity; move more slowly

• someone who suppresses

• a gene that suppresses the phenotypic expression of another gene (especially of a mutant gene)

• an electrical device for suppressing unwanted currents