How to spell "trigonometrical"

"His calculations involved complex trigonometrical relationships between angles."

• Letters

  15

• Difficulty

  extreme

• Origin

  Latin

• First letter

  T

• accidentally
• accommodating
• accommodation
• acquiescence
• advantageous
• aforementioned
• anachronistically
• antagonistically
• anthropomorphic
• anthropomorphism
• antidisestablishmentarianism
• apologetically

All extreme wordsMore Latin wordsWords starting with T