What are the best answers for “the act of making something futile and useless (as by routine)”?

constipation, deadening, stultification.

How many letters does the top answer for “the act of making something futile and useless (as by routine)” have?

The most common answer is constipation (12 letters).

3 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

constipation 12 letters wn-def

the act of making something futile and useless (as by routine)

deadening 9 letters wn-def

the act of making something futile and useless (as by routine)

stultification 14 letters wn-def

the act of making something futile and useless (as by routine)