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The pronunciation of any word in English (or any language at all) is not Universal.  This is because there are many different dialects of The English Language — both throughout America, and also world-wide.  The pronunciations that are presented on GiveMeSomeEnglish!!! are based-upon a combination of both “common usage”, and the most neutral accent used in The International Common Tongue — a.k.a. “American English”.
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Acclimated – For this word:  the “A” is short, the “cc” combination is pronounced simply like the single hard letter “c” (this is one of TWO standard pronunciations of this letter combination in The Common Tongue);  the “i” is an i-schwa;  for the “-ate” suffix – the “a” is a True Long “A”;  the “t” is (usually) stopped, but with the addition of the “-ed” ending – the “t” is a flap-t, and the “e” merges with the “-ed” ending;  and since the root-word ends with the sound of the letter “t” (even if it’s stopped) – the “e” of the “-ed” ending turns into an i-schwa, and the final “d” is a flap-d, but is (often) stopped.

– /æK-lih-may-dih[d]/ – /ˈæk.lə(ɪ).meiː.ɾ(ɪ)[ɾ]/ – Notice also that the stress is on the first syllable –

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Learn More About The Word “Acclimated” On Wiktionary

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