Princeton's WordNet

1. topmost, uppermost, upmost(adverb)

   at or nearest to the top

   "the uppermost book in the pile"; "on the topmost step"

2. uppermost(adverb)

   in or into the most prominent position, as in the mind

   "say what comes uppermost"

3. uppermost(adverb)

   in or into the highest position

   "the blade turned uppermost"

Wiktionary

1. uppermost(Adverb)

   In the highest position.

2. uppermost(Adjective)

   At, or nearest the top of something.

Webster Dictionary

1. Uppermost(adj)

   highest in place, position, rank, power, or the like; upmost; supreme

• boonsteAfrikaans
• الأعلى، الأرفَع، الأسْمىArabic
• най-високBulgarian
• mais altoPortuguese (BR)
• nejhořejšíCzech
• oberstGerman
• øverstDanish
• ο ανώτερος, ο πιο ψηλόςGreek
• más altoSpanish
• kõige ülemineEstonian
• بالاترینFarsi
• ylinFinnish
• le plusélevéFrench
• הַעֶליוֹןHebrew
• सबसे ऊपर वाला, सबसे ऊंचाHindi
• najvišiCroatian
• legfelsőHungarian
• tertinggiIndonesian
• efstur, hæstur, æðsturIcelandic
• (più alto/importante)Italian
• 一番上のJapanese
• 가장 높은Korean
• esantis pačiame viršujeLithuanian
• visaugstākais; (pats) augšējaisLatvian
• paling atasMalay
• bovenstDutch
• øverst, høyestNorwegian
• najwyżej leżącyPolish
• بالاترینPersian
• خورا لوړ، زښت جګ، ستر، خورا لوىPashto
• mais altoPortuguese
• cel maiînaltRomanian
• самый верхнийRussian
• najvrchnejšíSlovak
• najvišjiSlovenian
• najvišiSerbian
• högst, överstSwedish
• สูงสุดThai
• en yüksekteki/üsttekiTurkish
• 最高的Chinese (Trad.)
• самий верхній, найвищийUkrainian
• بالکل اوپري حصہUrdu
• cao nhất, trên hết, hàng đầuVietnamese
• 最高的Chinese (Simp.)