›the act of using something new or different instead of something else, or the new thing that is used: the substitution of sth (for sth)The governmentplans to encourage the substitution of cheapgenericdrugs for expensive brand-name ones.Telecommuting is not a substitution for child care.
Highly delighted, bitterly disappointed, ridiculously cheap: adverbs for emphasis.
by Liz Walter,
October 22, 2014
We often make adjectives stronger by putting an adverb in front of them. The most common ones are very and, for a stronger meaning, extremely: He was very pleased. The ship is extremely large. However, we don’t use very or extremely for adjectives that already have a strong meaning, for example fantastic,