substantially

[ suhb-stan-shuh-lee ]

adverb

1. by an ample or considerable amount; quite a lot:

   As a professor, my workload is substantially reduced or eliminated during the summer months.

2. in a basic or essential way; fundamentally:

   The new law mandates equal pay for substantially similar work, whether at the same establishment or not.

3. in a solid or firm way; stoutly or sturdily:

   In the far north, homes take more fuel to heat and also have to be built more substantially.

4. in a corporeal or material way; physically:

   The Eucharist makes the very Person of Christ truly, really, and substantially present in the consecrated bread and wine.

Other Words From

• non·sub·stan·ti·al·ly adverb
• su·per·sub·stan·ti·al·ly adverb

Word History and Origins

Origin of substantially¹

substantial ( def ) + -ly

Example Sentences

In fact, the study demonstrates that modest levels of spin polarization can substantially improve the efficiency of the tritium burn, improving overall efficiency and reducing tritium consumption.

From Science Daily

“Trump’s tax proposals would substantially raise taxes on regular Americans while delivering more tax cuts to corporations and the wealthy.”

From Salon

Rooney had accused Vardy of leaking her private information to the press and a judge found her post claiming this to be the case was "substantially true".

From BBC

“It would substantially change the very essence, the nature of the conflict,” Putin said.

From BBC

Israel says it has substantially increased the amount of aid getting into Gaza, and accuses aid agencies of failing adequately to distribute it.

From BBC

Related Words

• considerably
• essentially
• extensively
• heavily
• largely
• materially
• really