additional
On top of
Additional means extra or more than what was already present: We need additional funding to complete the project.
The word implies something added to an existing amount rather than a replacement: Additional troops were deployed, additional information came to light.
It's slightly more formal than extra but carries the same meaning.
Additional quantity
- anotherOne more of something
- otherDistinct from those mentioned
- newRecently created or begun
- freshNewly made, not stale
extended · continued · ongoing · renewed · increased · augmented · expanded · amplified
Amount exceeding requirement
- spareHeld in reserve
- leftoverFood saved after meals
- excessSurplus beyond need
- superfluousExceeding what suffices
redundant · unnecessary · unneeded · overflow · remaining · reserve · backup · supplemental
Mutually supplying lacks
- ancillaryProviding additional support
- supportingBearing or sustaining
- auxiliaryGiving additional support
- subsidiaryOf lesser importance
adjunct · accompanying · attendant · secondary · appended · attached · related · connected
Additional, beyond necessary
- perkEmployment bonus
- incentiveReward encouraging action
- rewardPayment for service
- gratuityPayment beyond the bill
premium · dividend · windfall · tip · freebie · lagniappe · gift · throwaway
Developing slowly over time
- stepwiseProceeding by degrees
- sequentialOccurring in succession
- phasedIntroduced or removed incrementally
- cumulativeIncreasing by successive additions
progressive · iterative · bit-by-bit · piecemeal · successive · accruing · compounding · building
more
Additional quantity
fresh · extended · continued · ongoing · renewed · increased · augmented · expanded · amplified · prolonged
surplus
Amount exceeding requirement
superfluous · redundant · unnecessary · unneeded · overflow · remaining · reserve · backup · supplemental · extraneous
complementary
Mutually supplying lacks
- ancillaryProviding additional support
- supportingBearing or sustaining
- auxiliaryGiving additional support
subsidiary · adjunct · accompanying · attendant · secondary · appended · attached · related · connected · associated
extra
Additional, beyond necessary
gratuity · premium · dividend · windfall · tip · freebie · lagniappe · gift · throwaway · complimentary
gradual
Developing slowly over time
- stepwiseProceeding by degrees
- sequentialOccurring in succession
- phasedIntroduced or removed incrementally
cumulative · progressive · iterative · bit-by-bit · piecemeal · successive · accruing · compounding · building · mounting
additionalsubtractive
Involving removal or reduction
fewer · less · reduced · diminished · subtracted
- in additionAs an extra element
- in addition toAlso including
- additional timeMinutes beyond regulation
- room additionNew built-on space
- addition tableGrid of arithmetic totals
- addition signsSymbols for combining quantities