12-Letter Words Containing: A,C,T,L,E,S,S

• Overly sentimental, emotional, maudlin or bathetic.

• someone who builds or maintains very tall structures

• cause to take on a definite and clear shape

• make free from confusion or ambiguity; make clear

• cause to form crystals or assume crystalline form

• assume crystalline form; become crystallized

• small (2-4 inches) pugnacious mostly scaleless spiny-backed fishes of northern fresh and littoral waters having elaborate courtship; subjects of much research

• a substance added to plastics or other materials to make them more pliable

• the process of paying close and continuous attention

• vigilant attentiveness

• a pocketknife with a blade that springs open at the press of a button

• a voyage outside the Earth's atmosphere

• To maintain individual possession of the puck or ball by controlling it with movements of one's stick, especially to do so in a skillful manner.

• (by extension) To deal capably and swiftly with a situation, especially in a manner which deflects potential problems.

• In a systemic manner.

• In a manner that affects an entire system.