posterior is a valid English word

Scrabble validity: valid ( international - Sowpods, US - Twl06 )
iScramble validity: valid
QuickWords validity: valid

Meanings

Adjective (COMPARABLE)

(anatomy) Nearer the rear or hind end; nearer the caudal end of the body in quadrupeds or the dorsal end in bipeds.
• Synonym: back, hinder, rear
(formal) Following in order or in time.
• Synonym: later

Noun (COUNTABLE)

(euphemistic humorous) The hinder parts of the body.
• Synonym: buttocks, Thesaurus:buttocks
(maths) The probability that a hypothesis is true (calculated by Bayes' theorem).

posterior is a Scrabble valid word

p3o1s1t1e1r1i1o1r1

• International English (Sowpods) - The word is valid in Scrabble ✔
• US English (TWL06) - The word is valid in Scrabble ✔
• 11 points

posterior is an iScramble, QuickWords valid word

p1o2s3t4e5r6i7o8r9

• The word is valid in iScramble ✔
• The word is valid in QuickWords ✔
• 45 points

Same letters words (Anagrams)

• REPOSITOR
• TORPORISE

Same letters plus one

• ATRIOPORES
• PORTFORIES
• PORTIONERS
• POSTERIORS
• POSTERIOUR
• PREPOSITOR
• PROCTORISE
• REPORTIONS
• REPOSITORS
• REPOSITORY
• RESORPTION
• SEROTROPIN
• TORPORISED
• TORPORISES
• TORPORIZES

Same letters minus one

• PIERROTS
• PORTOIRS
• PORTOISE
• POTREROS
• ROOTSIER
• SPORTIER
• TROOPERS
• TROOPIES