The word "crampest" is not a word in standard English. However, it can be inferred that the intended word is "cramped" which is spelled /kræmpt/ in IPA phonetic transcription. The pronunciation comprises of two syllables, "kramp" and "t", with the stress on the first syllable. The /æ/ vowel sound is followed by a voiced bilabial plosive /m/, and then a voiceless dental plosive /t/. "Cramped" is used to describe a space that is uncomfortable or restricted in size.