Definition

1. Adverb:
   • To a great extent or degree; considerably: Used to indicate that something is true or exists in a large or important way.
   • In a strong, solid, or substantial manner: Used to describe how something is built, done, or exists in terms of its essential nature or strength.

Usage Examples

• To a great extent or degree:

  • The company's profits have increased substantially this year.
  • Her health improved substantially after the treatment.
  • The new evidence substantially changes our understanding of the case.

• In a strong, substantial manner:

  • The bridge was substantially constructed to withstand earthquakes.
  • The argument is substantially correct, though some details are missing.

Advanced Usage

• "Substantially all": Refers to nearly all or the great majority of something.

  • Substantially all of the shareholders voted in favor of the merger.

• "Substantially similar": Refers to things that are alike in all important or essential aspects.

  • The two products are substantially similar in function and design.

Variants and Related Words

• Substantial (adjective): Of considerable importance, size, or worth; strongly built or made.

  • They made a substantial donation to the charity.
  • The furniture is very substantial and durable.

• Substantiate (verb): To provide evidence to support or prove the truth of something.

  • He could not substantiate his claims with any data.

Synonyms

• Considerably: To a notably large extent.
• Significantly: In a sufficiently great or important way as to be worthy of attention.
• Materially: To a significant extent; substantially.
• Essentially: Used to emphasize the basic, fundamental, or intrinsic nature of something.

Antonyms

• Slightly: To a small degree; not considerably.
• Insignificantly: In a way that is too small or unimportant to be worth consideration.
• Superficially: As far as the surface or outward appearance is concerned, not fundamentally.

Related Phrases

• "Substantially complete": Nearly finished, with only minor details remaining.

  • The building is substantially complete and will be open next month.

• "Substantially different": Different in important or fundamental ways.

  • The final version of the report is substantially different from the first draft.

Adverb

1. in a strong substantial way
   • the house was substantially built
2. to a great extent or degree
   • I'm afraid the film was well over budget
   • painting the room white made it seem considerably (or substantially) larger
   • the house has fallen considerably in value
   • the price went up substantially